What No One Tells You About Feeding Your Goldfish

Here’s the brutal truth about goldfish feeding:

There are WAY too many people in the goldfish world today that don’t know when enough is enough.

They say, “if I just keep feeding them until they won’t eat anymore, they’ll be good to go.”

If only it were that easy…

If you’re serious about making sure your goldfish is healthy, you need to be very systematic with exactly what and how much you are putting in the tank.

Otherwise you can end up causing your fish lasting damage (or even death).

Well today I’m going to show you the formula that almost guarantees that you will have a healthy fish and a stable aquarium for years to come.

Keep reading to learn how…

The Fail-Proof Feeding Formula (for Savvy Fish Owners)

There are 3 steps to this technique.

Step 1: Craft a digestive-friendly diet

Step 2: Know how much to give them

Step 3: Stick to the routine

Here’s why this method works (and why it will make your life so much easier):

It takes out all the guesswork and uncertainty out of mealtimes.

All of a sudden YOU have the power of knowing exactly what to do and how to do it.

You won’t be just hoping you’re feeding your fish properly… you’ll know you’re feeding your fish properly!

Step #1: Here are the Exact Kinds of Foods You Should Feed

As you may know, the carp is the “granddaddy” of what we call goldfish.

carp

They may look REALLY DIFFERENT on the outside because of so much selective breeding that’s been done to them…

But they’re still carp.

Understanding what they would eat if they still lived in the wild will help us know what we should feed them.

This begs the question:

What do carp eat?

In the wild, carp aren’t very good hunters, but their diet includes a mix of plants and insects or worms.

They’re omnivores.

Now:

Do your goldfish live in a pond like the carp?

goldfish-pond

Then you don’t have to worry about the issues we’re going to talk about today. That’s because the fish have lots to forage on already – just like the carp.

On the other hand:

If you have your goldfish inside, YOU are in charge of providing all of their nutrients.

Just get these two things:

1. A quality-made food: This will supply that protein and fat the fish needs to live, as well as other important vitamins and minerals.

Let’s get this out in the open right now:

Flakes are very popular.

flakes

But I don’t recommend them AT ALL.

Why?

They start FALLING APART and leaching ingredients into the tank as soon as they hit the water.

And it’s hard to tell exactly how much you’re using.

If those aren’t enough reasons to avoid them, there’s also the fact that most of them use filler ingredients to cut down their costs!

So what should you get instead?

Invest in a high quality goldfish food.

It should not contain any fillers, wheat or wheat gluten (goldfish aren’t grain-eaters and can’t digest wheat!) or chicken. Most labels are literally junk food for your fish and don’t meet all 3 of these requirements, not even many of the ones marketed as “high end” goldfish food brands.

I use Repashy gel food for my goldfish because it is one of the very few that does suite the unique digestive and nutritional needs of goldfish.

Not only that, but because it is a moist food, it minimizes the risk of constipation.

You can get it here.

A good oneΒ will have better ingredients and a higher percentage of protein and fat. Plus, it is made to have all of the nutrients a goldfish will ever need for the rest of its life.

It will be well worth the extra money!

Gel food can actually be made right in your own kitchen, if you have the ingredients.

Remember:

The food will only be as good as what you put in it. Goldfish have some pretty complex nutrition needs, so you will have to do some homework and figure out everything you will need to get and how much of it to use.

Hate to burst your bubble…

… but you probably WON’T save money doing it this way.

The packages comes with a powder that you add water to and cook up.

Like a good quality pellet would, it will need to have high protein and fat with little fiber.

Read more about why I use gel food for my goldfish.

2. Fibrous veggies: These will ensure that your goldfish gets the fiber it would get if it lived in the wild and counterbalance the rich pellets.

There are a lot of options here.

My personal recommendation is to get some leafy greens from your refrigeratorΒ for your goldfish to nibble on.

You’ll want to get enough of them (and maybe some different kinds) so they don’t all get eaten up right off the bat.

Your goldfish DOES need to eat a daily salad!

And – bada bing, bada boom – you’re set.

Once you’ve gotten these two things, move on to step #2…

Step #2: Avoid the Pitfalls of Overfeeding By Knowing How Much to Dish Up

I think you’ll agree with me when I say:

Eating a cheeseburger is GREAT every so often.

burger

But eating one every meal of your life – breakfast, lunch and dinner?

Not so much.

You know the reason… it’s too rich!

Goldfish food, even good quality food, is rich like burgers. They’re fatty and high in protein. Too much rich food = sick fish.

While goldfish DO need some rich food to live, how much they eat of it has to be very controlled or they end up sick and overweight.

overfed-goldfish-sick

Listen:

By nature, goldfish are foragers (like the carp).

They have only one goal in life: EAT – and eat as much as possible!

This is because their survival instincts tell them to prepare fat reserves when food is available for the cold winter when food is scarce. It works well for carp who have those lean times… but not for goldfish who don’t.

By now you know that goldfish are simply “repackaged” carp.

Here’s the bad news:

All of these changes have made goldfish (especially the fancy kind) very sensitive in respect to diet. That’s because their bodies have gotten much shorter… but their organs have not.

goldfishvscarp

Their swim bladders and livers are especially prone to getting damaged by eating too much FATTY FOODS.

Fat builds up in and around their organs and can lead to problems with fluid balance… even to the point of getting the disease dropsy!

That is… if you overfeed.

This brings us to the next pointt:

Just how much of those pellets should you be giving your fish so they don’t get overfed?

You may have heard this before:

“Feed fish as much as much as they can consume in a 2-3 minute period several times daily.”

Or this…

“Feed no more than your fish will consume in 5 minutes twice a day.”

#facepalm

Those instructions will take your goldfish to bad health faster than a greased pig on roller skates in the average aquarium.

See, unless you follow all of the best practices for goldfish care, you can’t feed your fish that way.

Because foods is the biggest contributor to water quality problems.

A time frame of about 30 seconds is all most goldfish keepers should be aiming to feed in. Any more than that… and you are actually risking your tank.

Want to know the scary part?

Those directions actually came from labels on goldfish pellets from well-known pet stores! The average fish keeper reads them and thinks to themselves, “Perfect. My fish aren’t overfed because I stay within those limits.”

But not long after, they don’t know why their fish are ill – maybe even dying.

Now:

It doesn’t take long to eat the amount of food a goldfish needs.

Even though they don’t need more nutrients, the rest of the day they will feel hungry.

So they beg.

hungry-goldfish

Seems glutinous, but actually they’re BORED without being able to forge. (Instincts, remember?) Because they’re not eating anything at that exact moment, they think they’re starving when they aren’t.

Good news:

This is where the veggies come into play.

Veggies help balance out that rich food. And having 24/7 access to those healthy leafy greens will make sure your goldie always has something to munch on.

But you should know…

Plants aren’t nearly as tasty as pellets – they’re a lot more tough and stringy – so your fish will be reluctant to eat them.

do-not-want

So here’s a little goldfish parenting 101:

If they aren’t eating their salad, don’t give them any pellets.

(Eventually they’ll cave in!)

Step #3: Get in the Habit of Following a Feeding Schedule

Here’s the last step in my easy-as-pie feeding guide:

Stick to a routine.

You’ll probably want to pick a set time every day to feed so you won’t forget to drop in the daily ration of pellets and make sure there is enough leafy greens in the tank.

You can tell if they are if you see little bites out of the leaves and the amount is getting smaller…

… Or by the color of their stool.

Feeding time is also a great time to check on your fish’s general health.

Here’s the deal:

People often overfeed because their fish acts like it is still hungry even after eating its pellets. It will do everything it can to look cute and irresistible to get you to buckle.

DON’T do it!

You aren’t being mean when you cap the jar and cross your arms. You’re doing what’s best for them.

(Remember… if it was up to your goldfish, it would eat itself to death.)

gorginggoldfish

Another reason fish owners give in is they want their fish to get big and strong FAST. If that’s you, give your fish a bigger tank, not bigger portions.

Overfeeding won’t speed up growth.

Look:

Some goldfish owners try to make their pets look fatter by stuffing them with pellets. But “plumping up” them up will only make them overweight.

A blimped-out, sick fish is far less adorable than a trim, healthy one – wouldn’t you agree?

Proper care (and good genetics) will make a fish look stout and healthy.

Now:

If you have multiple fish, making sure that everyone gets their fair share can be a little tricky.

That’s why you could try hand feeding your goldfish.

hand-feeding

It makes it WAY EASIER to control who gets what during the feeding frenzy.

You’ll probably find that the time it takes to train your fish will depend on how cleaver it is. Newer fish will be more easily frightened of you, but don’t give up.

For the fish that just doesn’t get it (or has poor vision, like a Telescope), you can try putting them in a floating basket while giving them food. There will be less room to search around and other fish won’t interfere.

Just remember:

If one fish happens to get more than the others some dinner, resist the urge to give the others more.

Food for Thought: Other Stuff You Could Feed Your Goldfish

Goldfish are major gluttons and will eat just about anything.

That news has lead many owners to start experimenting with their goldfish’s diet.

Personally?

I like to find one system and stick with it.

What’s the bottom line?

As long as your goldfish has a good quality pellet and some greens to graze on, you don’t need any of these other foods.

“Variety” may be a popular buzzword lots of people are using as the key to a great goldfish diet, but it’s totally overrated. For the most part, simpler is better. It’s easier for you and it’s easier for the fish.

That said:

If you feel adventurous and want try to switch things around, here are some other options:

What You Could Use Instead of Aquarium Plants

Not everyone wants aquatic plants in the tank to be used as food (which is why they get goldfish-proof ones instead).

That’s okay – just about any fibrous veggie will do.

A leaf of uncooked romaine lettuce, spinach or kale (though kale is a bit high in protein) can be placed in the tank and will do the job.

greensmix

However:

You’ll have to put up with rotting vegetables on the bottom of your tank. Not everyone wants to go for that look.

That’s why lots of goldfish keepers are finding success using lettuce clips.

(Don’t forget to replace it when it runs out!)

Grass Clippings

grass-clippings

As weird as it sounds…

Your goldfish will eat grass for its salad.

If you want to try it make sure you get the grass from a safe place. Don’t want to feed your goldfish something terrible like weed killer or other poisons accidentally!

Peas

One highly popular treat people use are peas.

You can take the shells and skins off and chop them with your fingernail.

peas

The pros?

Their easy to digest – and you don’t have to look any farther than your fridge to find them.

The cons?

These are surprisingly pretty high in protein, which makes them a bad choice for counteracting protein-rich pellets. But they don’t have enough other nutrients to take their place.

And besides all that, they tend to cloud the water when mushed, so make sure not to squish them.

Pumpkin & Squash

pumpkin-squash

They aren’t high in protein.

They aren’t high in fiber.

In other words…

They don’t have a whole lot to offer either.

Fruit

oranges

Fruits such as orange slices or other types of citrus are tasty and complement pellets by being low in protein.

BUT, they’re really acidic.

And certain kinds are a little too sugary.

Other Treats You Can Use Instead of Gell Food/Pellets

There is a LOT to be said for the professional fish nutritionist who made your brand of pellets.

They’re made to sustain your goldfish for the rest of its life.

Feeling adventurous?

There are other substitutes.

Live Foods (or Frozen Foods)frozen-bloodworms

These are super digestible and high in protein. And you can’t get more natural than a worm (yes, you can use earthworms from your backyard) for a fish!

Baby goldfish eat tiny live foods such as baby brine shrimp to help with their growth.

If used sparingly, they make a nice diet supplement for more mature fish.

Again…

SPARINGLY is the key word.

I can’t give you an exact amount because there are so many different kinds of live food. When in doubt, less is more.

Freeze-dried Foods

freeze-dried-bloodworms

Foods such as freeze-dried bloodworms are commonly sold at pet stores as treats for goldfish.

However:

They’re a lot like flakes. It’s hard to tell how much you are feeding and they’re extremely dry.

Some say the freeze-drying process zaps out nutrients anyway.

Now it’s Your Turn

You’ve just seen my 3-step Fail-proof Feeding Formula…

Now it’s time to put those techniques into practice.

If you don’t remember anything else, remember that OVERFEEDING – not starving your goldfish to death – is the cause of most problems.

Did you learn something new?

If so, I’d love to hear your feedback below.

Oh, before you go:

Finally, for the complete guide to goldfish care including everything you need to know about feeding, check out our eBook, The Truth About Goldfish.

The Secrets to a Healthy GoldfishΒ Revealed

Learn how to keep your goldfish alive and thriving usingΒ the only complete, accurate goldfish manual available today –
The Truth About Goldfish.

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2017-09-17T23:42:50+00:00

290 Comments

  1. Missy November 23, 2015 at 1:01 am - Reply

    Nice article, easy to read and basic to th he point. I have heard lots of different advice on how much to feed fish in a time frame. I probably need to feed them less. However I will start putting organic romaine lettuce in the tank. What do goldfish like to do for fun? What can I do to help keeping them from being bored?. Thank you Melissa.

    • Clementine
      Clementine November 23, 2015 at 1:56 am - Reply

      Happy to see you got some value from this guide, Missy. Lettuce and grazing matter are fun, for a goldfish. They live to eat and forage, and if they can do that, they will be happy as clams πŸ™‚

  2. Leroy platt November 30, 2015 at 1:12 am - Reply

    Well now I know I’ve been overfeeding Chubby. I’ve had him for years and he’s been fine, a couple of weeks ago I completely cleaned the tank and changed the water. The tank had a lot of alge. Now chubby has a very nasty sore looking base of his tail. I’ve never checked the ammonia or nitrate level in his tank. Also didn’t know they needed greens.

    • Clementine
      Clementine November 30, 2015 at 2:20 am - Reply

      It’s something nearly all keepers have done, Leroy. But I’m glad you learned something new! Yes, I’d definitely check the ammonia & nitrite levels and keep changing the water, that will help get rid of the nasties =)

  3. Jennifer December 15, 2015 at 4:31 am - Reply

    I have realized recently that I was overfeeding my goldies and bought pellets for them since they have grown big enough to eat them and it gives me more control. The problem I faced was there was no instructions on the pellets for how many so I just went by the fact that their stomach is as big as their eye thing. I can’t wait to try to hand feed as my largest goldie always stuffs himself. He has put five pellets in him mouth at the same time! Which then dirties my tank water because he is spitting out debri everwhere lol. So I just fed them one pellet at a time several times a day so this wouldn’t happen.Anyways, fine article thanks for the good information. To Missy – Mine love bubbles and play in them constantly :).

    • Clementine
      Clementine December 15, 2015 at 7:40 pm - Reply

      Thanks for sharing that, Jennifer! Glad you liked the article.

  4. keith December 15, 2015 at 6:21 pm - Reply

    Exellent tutorial new i was feeding to much because nitrates was always high ie 40ppm + constant water changes will reduce amount with greens thanks.

    • Clementine
      Clementine December 15, 2015 at 7:55 pm - Reply

      Thanks, keith! Yeah, high nitrates are often caused by lots of food or dissolving organic matter like rotting plants. I think you’ll be able to cut back those nitrates pretty quickly now that you’ve found the problem.

  5. Juliana December 16, 2015 at 10:08 am - Reply

    Seems I am only just sort of overfeeding. I am currently using an autofeeder for both my 3L beta bowl and my Biorb, which I am testing before I go away. Happily Bruce (Beta) has perked up since I brought the idiot child home. It took him a while to eat. 2 weeks? He is now eating and drinking like a fish.

    Guzzle, Guts and Toad are all doing well, despite high nitrites, which I am addressing restrospectively. The feeder slowly drops the pellets into the tank over a 2 hour period. Most of the time, G&G pick them up before they hit the substrate. I put 6 pellets (3 each) per feed. It was a bit more, but I have now reduced the amount. They get a half a pea each once per week instead of their regular pellets. Should I increase the green to a half pea each twice per week? I hand feed the peas to make sure they both receive them.

    I am now also starting to place an algae wafer in the teracotta plant pot hidey hole for Toad, which has done a sterling job of cleaning the tank up. I am doing this once per week. It also makes it a safe spot where G&G cannot get it, and I can remove it easily if required. I am using forceps to place the wafer as it is then where I want it.

    I am trying to do the right thing for my beautiful goldfish. I am just worried that I am going to kill them or something. I love sitting watching them.

    • Clementine
      Clementine December 18, 2015 at 12:55 am - Reply

      Peas aren’t in my opinion that great of a choice for goldies. They really cloud the water and are so high in protein that they don’t give the fiber the fish need. It sounds like you really care about your fish; if you just watch the feeding, water quality and space and you should be good.

  6. Juliana December 19, 2015 at 7:30 am - Reply

    G&G will take algae wafers. I have bought a tablet chopper from the chemist which does a sterling job of cutting the wafters nice and evenly so I can portion control them. Looking at the package, they are high in fibre, minerals and nutrients, so I might just supplement a couple of times per week with a wafer portion each.

    They boys seem to like the peas and they only get a half one each as a treat, but its not really enough to cloud the tank. Their poop has been nice and long, rather orange worm like, which is skimmed as soon as I see it. They are still swimming vertically and chase each other around the tank. When they are not doing that they are rummaging around in the rocks.

    So, I am pretty happy with the new regime. I cannot wait to go back to hand feeding them.

    • Clementine
      Clementine December 19, 2015 at 6:29 pm - Reply

      Gotta love golfish poop ODD, right? Lol I’m guilty of that too. The turkey baster can come in handy for that.

  7. Juliana December 21, 2015 at 9:15 am - Reply

    I am pleased to report that the regular water changes seem to have worked perfectly. 48 hours after the last water change and 6 days after reducing high protein feed and introducing the occasional spinach leaf, the water testing returned an identical reading as 2 days ago. I am now confident my tank is starting to equalise. The water is beautifully clear and all three fish are are happily active and swimming around as they should. They only sink to the bottom to sleep.

    I will be continuing with 2-3 times weekly water changes. This will be every 4 days while I am away, with a change on the day that I return. I am very happy with the new feeding regime and will retain it when I return. Over three days, they took the entire spinach leaf with only a few scraps left which I removed today.

    Thank you for your insights and help.

    • Clementine
      Clementine December 21, 2015 at 3:41 pm - Reply

      Good to hear that, Juliana. Keep up the good work!

  8. ANGELICA December 23, 2015 at 7:50 pm - Reply

    Nice article . I am feeding my goldfish new life spectrum pellets which is 1 mm small, i have 5 goldfish i do give them 1/4 tea spoon is that to much ? and i do soak them in aquarium water is that ok ? or i should give them with out soaking them. I also feed the repashy gel food i don’t really know how much to give them ,please help .
    I also have one fantail with swim bladder shes on side sometimes up just sitting in hospital tank ,no medication ,just little aquarium salt. water is change everyday 50 -90 % . i know this recently red spots on pectoral fins and her belly but closer to anal .
    i dont know what to do.

    • Clementine
      Clementine December 24, 2015 at 9:34 pm - Reply

      Hey Angelica, glad you liked it =) Well, normally I advise choosing one or the other, either pellets or gel food. If you do pellets then yeah 1/4 tsp might be a bit much. Since your size of pellets is so tiny you might do 6 small pellets per fish instead of 3 medium sized ones. Soaking has its pros and cons, for a pro it might be easier to digest and for a con it might foul the water more. Personally I don’t soak. But if you go with gel food less is more, try to do the equivalent amount of gel food to the recommended number of pellets. You might have to eye it.

      About the fantail, swim bladder is caused by overfeeding in most cases. That will foul the water too. My advice would be keep changing the water and reduce feeding her while she is recovering. Also testing the water is very important even with daily changes, check the filtration and even test the tap sometimes it can have ammonia.

  9. pam December 24, 2015 at 4:19 am - Reply

    gee hated to find out im still killing my goldfish with love. thought i had cut back on their food at 2 to 3 minutes. i feed peas and grapes at lunch with the most expensive food, now i will feed less fish food and hope they feel better. now im fighting ich. these 2 dollar goldfish have cost me more than 2000.00 in the last 2 years figuring out how to take care of them and now they would plug the toilet ha ha.

    • Clementine
      Clementine December 24, 2015 at 9:44 pm - Reply

      Don’t feel bad, Pam, nearly everyone has overfed at some point. But it’s great you care enough about your 2 dollar fish enough to spend that much on them! Hope they turn a corner with the ich. Change the water a lot and do the salt treatment. πŸ˜‰

  10. Les December 26, 2015 at 5:27 am - Reply

    Good Article. The key to a healthy Goldfish diet is moderation and patience. I have found that my Goldies do much better with simple flakes then more expensive higher protein pellets. I had them on both diets and returned to flakes. I feed my fish once a day and not much flakes. About once or twice a week I offer peas (their favorite), brocolli, grapefruit (not often), banana (not often), as well as a leaf of spinach clliped to the glass (it will be gone in 2-3 days). The key is to make these foods very small so they get consumed right away. But when ever fish feel bad (usually gas) the peas do the trick quickly.

    • Clementine
      Clementine December 27, 2015 at 4:59 am - Reply

      I definitely agree with you that small portions are absolutely the key =) Glad you liked the article.

  11. roberto December 27, 2015 at 11:37 pm - Reply

    Hi, i let the algae grow on the tank sides to shade the tank as i have it outside, after some months i notice that the fish eat the algae fron the tank sides, it’s this good for them? are 8 on a 100 galons tank. will apreciate your help on this, thanks

    • Clementine
      Clementine December 28, 2015 at 4:07 am - Reply

      Absolutely =) Algae is very healthy for goldfish and it’s some of the best, most natural food they can eat. For that reason many fish keepers choose not to scrub it off.

  12. Sarah December 29, 2015 at 10:20 am - Reply

    We have five goldfish that live outside in a lined half whisky barrel. It’s December and because of the warm weather, they’re at the top. It’s between 10 and 14 degrees. Should we feed them? Please advise. Thank you. Great article btw ? .

    • Clementine
      Clementine December 29, 2015 at 5:01 pm - Reply

      If the temperature is below 50 degrees F, don’t feed because it could kill them. During hibernation goldfish will last quite a long time without food as their heart rate slows down. And glad you liked the article πŸ˜‰

  13. Julie January 2, 2016 at 8:13 pm - Reply

    So do you feed as much as they can eat in 30 seconds twice a day? I have three young goldfish, i think i might be overfeeding them! I have also heard that you should feed them 2 good mouthfuls twice or 3 times a day. Is that a good rule or not?

    • Clementine
      Clementine January 3, 2016 at 4:44 am - Reply

      Hi Julie, no, I don’t go by 30 seconds or mouthfuls I go by the amount of food. For a full grown fish (1 yr) the rule is 3 pellets but for younger fish that are still growing you can feed more frequently, but that does mean more tank maintenance.

  14. jennifergagnonmorel@gmail.com January 23, 2016 at 1:21 am - Reply

    Hi clementine I’m having a mini emergency! my fish is not doing so well i made him an emergency appointment tomorrow morning with the vet at noon. I need help to know what i can do in the mean time and if my levels are the problem…. My levels are as follows:

    GH 120

    KH 180

    PH 7.5

    NO2 BETWEEN 0 – 0.5

    NO3 BETWEEN 40 – 80

    If anyone can comfirm if these levels are good and they are not can let me know a quick solution to fix it it would be greatly appreciated!!!!!

    Thank you

  15. jennifergagnonmorel@gmail.com January 23, 2016 at 1:25 am - Reply

    Hes a celestial goldfish he developped a small bump behind his gill last week I started him on an antibiotic / parasite treatment the bump seemed a bit smaller but never left completely but his attitude was the same as usual until today now hes lying on the ground mouth opening and closing seems like hes uncomfortable because hes not swimming just barely to move to another area to lie down he wont eat peas or pellets hes jus ignoring them please any advice would be extremely appreciated

    • Clementine
      Clementine January 23, 2016 at 5:07 am - Reply

      A vet won’t be much help to you unless you are dealing with a rare parasite or virus, Jennifer. Instead I would focus on your water, which is likely the cause of his symptoms. This will include lowering your nitrate (which is too high for goldfish) and your nitrite (also too high) and most importantly your ammonia through water changes and proper feeding. Hope this helps πŸ˜‰

  16. PS February 8, 2016 at 6:25 am - Reply

    I’m a newbie here and was looking at the options to feed my goldfish..and totally L.O.V.E.D. your article!
    Peas and other foods mentioned are easily available in the kitchen .. and apparently its healthy and necessary too!
    Thanks..

    • Clementine
      Clementine February 9, 2016 at 4:37 am - Reply

      Well thank you, PS πŸ™‚ I very much appreciate it.

  17. Darrin February 16, 2016 at 6:18 pm - Reply

    Should pellets be softened first before feeding

    • Clementine
      Clementine February 16, 2016 at 6:51 pm - Reply

      No, it’s not necessary for sinking pellets.

  18. PS February 17, 2016 at 2:16 am - Reply

    Hi Clementine, Just wondering if you would be aware of what fishes are compatible with goldfish?
    Cheers, PS

    • Clementine
      Clementine February 18, 2016 at 5:02 am - Reply

      Hey PS! Just goldfish πŸ™‚ They are not compatible with tropical fish or any other freshwater fish.

  19. PS February 18, 2016 at 5:23 am - Reply

    Drat.. thanks Clementine! πŸ™‚

  20. Bebo kallini February 21, 2016 at 5:56 am - Reply

    Hey,, my sister got a goldfish today and I really want to help her and keep it alive, but we don’t have any fish food. I’ve tried to put peices of spinach for it to eat,, but it ignores them. If you can tell me of anything I could feed it for a few weeks before we get fish food and a bowl, I would greatly appreciate it. BTW we don’t have any worms or shrimp or things like that.

    • Clementine
      Clementine February 21, 2016 at 7:28 pm - Reply

      It will eat the spinach when it gets hungry enough. You just have to be patient. But please don’t get the fish a bowl, get it a proper tank of at least 10 gallons or it will probably quickly die.

      • Bebo kallini February 24, 2016 at 7:25 pm - Reply

        I got it a small betta fish bowl and fish food but now it is lying on its side. I think it’s swim bladder disease but I don’t know how to treat it.

        • Clementine
          Clementine February 25, 2016 at 5:35 am - Reply

          In a small bowl, the water quickly gets polluted. Symptoms of water poisoning can include buoyancy problems. Of course, depending on how you have been feeding, the fish could have constipation.

          • Bebo kallini February 25, 2016 at 7:43 pm - Reply

            It died

            • Clementine
              Clementine February 26, 2016 at 4:46 am - Reply

              Sorry to hear that πŸ™

  21. Claire February 21, 2016 at 1:36 pm - Reply

    Wow !!!!! Just read the article. I’m shocked. I have contacted you before in the past few days and you told me to read this feeding article. In the past I have done exactly the mistake as you say. I have fed enough for them to eat in a time frame. I had a little problem with one of my goldfish so after reading a general article from you I cut back the feeding over the last 3 days but wasn’t sure it was enough so you told me to read this. I think I may still be putting too much in. I feed twice a day and cutting back I put 2 pellets for each of one kind and 2 per fish of another kind of pellet so I have 4 fancies and I’m put 4 pellets in for each fish twice a day. Also no veg so I am going to get a romain lettuce or leafy plant to munch on cause I love watching them forage around. Thank goodness I read this. Why is such bad advice given like feed as much as your fish can eat in two mins !!! Now I know that that is wrong and a few pellets per fish is more like it I hope to have healthy Goldie’s for years and years cause I love these cute fish that almost kiss me when I put my face close to the glass and wiggle around so cute to me. This is what I want not a sad fish sitting at the bottom cause there’s way to much food and poop happening in their home. I was way way over feeding before I read your general article a few days ago and now I have read this I feel confident I am being good to my fishy friends just giving the amount. I would love to try the hand feeding too at some point. Thank you so so much. Best site article by far…. Love it

    • Clementine
      Clementine February 21, 2016 at 11:12 pm - Reply

      Happy to hear that you found it useful! Happy fishkeeping.

  22. PS February 22, 2016 at 2:22 am - Reply

    Hi Clementine,
    I’ve got some mixed information, so thought I’ll check with you.. How many goldfish would be ideal in a 55 Gal (215 liter) tank?
    Thanks a lot for your time in advance!

    Cheers,
    PS

    • Clementine
      Clementine February 22, 2016 at 3:20 am - Reply

      5 fancies is the max # of goldfish for that space, PS. Ideally you would do 3 or 4 to give them the most space, but it is entirely your choice. πŸ™‚

  23. lina February 24, 2016 at 11:09 pm - Reply

    I love this article. my son has a small goldfish that he won at school. We’ve had it for about 6 months and recently he got sick. I believe it was of bladder disease. It was swimming funny and struggling. We felt awful. It was overfeeding. So we changed his water and changed the filters because we thought it might be dirty water. Little did we know that we shouldn’t have changed all the water at once and that we should have waited to change the filters at a different time, but we were just desperate to save the fish. We didn’t feed him for 3 days and kept him in a separate smaller tank for the same amount of days. He started swimming normal and we returned him to his 10gal tank. Ive noticed that he has a couple of scales missing, but this might be because he was struggling to wrim and kept bumping on his little house in the tank?? We switched to sinking pellets and now I feed him once a day. I was doing 4 pellets once a day, but now I’m questioning if that’s still too much? He also has not been back to his normal cheerful self. He hides in his castle the whole day and doesn’t swim around and only comes out to eat. We are so sad and don’t know what to do next. help

    • Clementine
      Clementine February 25, 2016 at 5:37 am - Reply

      Missing scales happen usually in response to water quality trouble. His hiding behavior is also an indication of that. Keep up with the water changes and filter cleanings, it isn’t wrong to do them at the same time or a lot of them.

  24. TheHyena March 8, 2016 at 6:59 pm - Reply

    I have a really small Blackmoor goldfish named Cassio that I got this year for my birthday. I’m noticing that he actually looks kind of sad. I bought him some pellets instead of flakes, I be careful not to overfeed him, and I even give him things like frozen bloodworms, strawberries, and lettuce for meals. I also have a coliseum decoration in his tank as well as some live plants. He just sits in the corner of the tank and doesn’t swim around much, but he used to be more active. He is the only fish in his tank aswell, because 10 gallons is only enough for one fish right? So do you think he could be sad because he’s lonely? Would you suggest getting him a little friend?

    • Clementine
      Clementine March 9, 2016 at 5:06 am - Reply

      Yes, 10 gallons is only enough for one. He is probably sad because he is not feeling well. Have you tested the water?

  25. Ken Graham March 9, 2016 at 5:41 am - Reply

    Great website! Very informative and you did give me lots of new foods to consider giving my goldfish too. I have been varying their diet for some time but I am now ready to introduce greens to the tank as well!

    • Clementine
      Clementine March 10, 2016 at 3:00 pm - Reply

      Happy to hear you enjoyed it, Ken!

  26. Jordan March 11, 2016 at 8:31 pm - Reply

    I have looked thoughly and I can’t find one other reference to peas being a bad food choice in the rotation. I have also verified that peas are indeed one of the highest fiber veggies. Can you explain your take on peas?

    • Clementine
      Clementine March 11, 2016 at 9:12 pm - Reply

      Sure πŸ™‚ Yeah a lot of people use them, I think partly because they’ve become the go-to treatment for swim bladder and goldies eat them quickly. Personally I feel that firstly the way they cloud water is undesirable. While they are high in fiber they are higher in protein. If they are fed alongside pellets it can lead to excess protein in the diet. As an occasional substitute for pellets it would be better used, but peas don’t contain all of the nutrients that pellets supply. You would have to get that elsewhere to provide a complete diet, which requires more understanding of goldfish nutritional requirements.

      So, there’s not really a reason, in my opinion, to bother with them. Pellets or gel food supplies all of the nutrients a goldfish needs and using a mostly fibrous veggie for digestive health is my preferred method.

  27. TheHyena March 15, 2016 at 6:51 pm - Reply

    Sorry for the late response. I tested the water using tetra test strips and the tetra water care app. It said everything was ok except my nitrite, which is 1.0 ppm, and my pH, which is 8.8 ppm. I use Easy Balance every week and do a 50% water change every other weekend. Do you know what the problem could be?

    • Clementine
      Clementine March 15, 2016 at 11:04 pm - Reply

      Oh, if you have nitrite readings, that is absolutely the problem. Nitrite is highly toxic. Every other week water changes are probably the reason for that.

      • TheHyena March 16, 2016 at 6:37 pm - Reply

        Oh no! How often would you suggest changing the water?

        • Clementine
          Clementine March 17, 2016 at 4:09 am - Reply

          At least weekly, more is better.

          • TheHyena March 17, 2016 at 4:57 pm - Reply

            Okay, thank you so much!!

  28. PS March 22, 2016 at 5:07 am - Reply

    Hi Clementine,

    I’ve observed off late that the 5 goldfishes that i have in my tank hang out often around the top left corner of the tank, near the surface of the water. Now i do have a filter that pumps the air bubbles through the water and i test the parameters every week. I also change about 25% the water weekly.
    I’m just curious to know, is there something that they are trying to tell me?.. am i doing something wrong here?

    Thanks in advance.
    Cheers,
    PS

    • Clementine
      Clementine March 22, 2016 at 2:10 pm - Reply

      Hey PS! It is recommended to do at least 50% water change weekly. That could be why they are looking that way.

  29. PS March 22, 2016 at 10:52 pm - Reply

    Thanks for the prompt revert Clementine, I’ll try the 50% water change and let you know if that’s made any difference.

  30. Iris March 26, 2016 at 11:24 pm - Reply

    Great article. First time I see any article mention how terrible it is to feed goldfish based on the 2-3 minute way. Over feeding my two blackmoor was always a concern for me in this way!

    • Clementine
      Clementine March 26, 2016 at 11:45 pm - Reply

      Thank you, Iris! It is so easy to overfeed when going by time rather than quantity.

  31. Jacqueline April 10, 2016 at 9:53 pm - Reply

    Hi Clemantine,

    I love what you’ve written, so easy to understand and informative!

    My fantail goldfish is in a 2.5 gallon tank. Do you think that’s too small?

    I am doing water changes of 25% once a week but have cloudy water that won’t go away. My goldie is fed once a day by hand so no excess food floating around.

    Hope you can help!

    Many thanks,
    Jacqueline

    • Clementine
      Clementine April 11, 2016 at 3:58 am - Reply

      Hi Jacqueline! Thank you very much πŸ™‚ Yes, I’d say a 2.5 is too small. To house even one goldfish comfortably you would need to be changing the water daily or the tank will dirty too fast, as is evidenced by the cloudy water. I think you would do well to get a 10 gallon at least and then you can do weekly water changes of 70% πŸ™‚

  32. PS April 11, 2016 at 4:54 am - Reply

    Hi Clementine,

    I’m back with a query!
    Recently I’ve noticed that one of my goldfish (the smallest one) has been swimming a bit funnily.. On closer observation I’ve noticed that his tail fin looks like its tattered with uneven edges (which is possibly why its swimming lop sided).
    I’ve been doing 50% water changes every week and the parameters are fine.

    Could this be because the bigger ones are bullying this poor fish.. or is there something more sinister going on here?

    What can i do to possibly help this lil fella?

    Looking forward to your reply and thanks a lot in advance! πŸ™‚

    Regards,

    PS

    • Clementine
      Clementine April 12, 2016 at 4:05 am - Reply

      Hi again πŸ™‚ It does sound like something isn’t right in the tank. I would do water changes daily until you see improvement, then up the weekly water changes to 90% weekly or 50% twice weekly.

  33. Shay April 14, 2016 at 6:00 pm - Reply

    So, I’m hoping you can help me. I love my goldfish and have been trying my best to take care of him right. He seems to be having buoyancy problems every time after I feed him. The water is fine. I sort of have some aquarium plants and either my lack of a green thumb applies to aquatic plants too or somethings up with it…. The plants don’t stay in the gravel and it doesn’t look like my fish a has eaten them but instead of being 6 inches tall, they are now two inches tall… So I don’t know if that is a problem or not, also I only feed him two pellets a day. I’ve been trying to follow the guide you gave in the article and i don’t know if I’m still doing something wrong, but i want to fix this problem so my fish can be happy and healthy again…

    • Clementine
      Clementine April 16, 2016 at 4:15 am - Reply

      There are many factors that can cause swim bladder, feeding is just one of them (though usually the main one). At 2 pellets a day that is probably not the problem for you, it could be related to water conditions or even genetic propensity.

  34. PS April 14, 2016 at 11:31 pm - Reply

    Hi Clementine, thanks for the suggestion.
    I tried that, but unfortunately the lil one caved in to the bullying that was going on and is no more..
    πŸ™

    • Clementine
      Clementine April 16, 2016 at 4:15 am - Reply

      Sorry to hear that πŸ™

  35. Shay April 16, 2016 at 2:09 pm - Reply

    Thanks Clementine, it helps to have someone’s opinion that has had a little more experience than I have. He really seems to have problems whenever I feed him or whenever I clean out his tank, then he starts floating around. The water is good though, I’ve tested it to make sure it’s okay. Is there anything you’d suggest doing?

    • Clementine
      Clementine April 16, 2016 at 10:30 pm - Reply

      No problem πŸ™‚ How often are you changing the water and how much?

  36. Shay April 24, 2016 at 2:17 am - Reply

    I’ve been doing almost a 50% water change every other week. He seems to do worse sometimes after the water changes though… I’ve checked the water again and again and it’s still fine when I clean it, but he’s still floating. I thought I had it figured out with the feeding thing and then he started floating again really bad today. It makes me sad to see him float around… I don’t know if he actually has swim bladder disease or if it’s a feeding/buoyancy problem. When I fast him he swims around great, but after feeding him again it only takes a day or two before he’s got problems again.

    • Clementine
      Clementine April 24, 2016 at 3:55 am - Reply

      What are you feeding him? And, 50% water change every other week just isn’t enough πŸ™ If he does worse afterward it could be due to stress.

  37. Shay April 26, 2016 at 5:45 pm - Reply

    I feed him Omega One Goldfish pellets (small), they are the best ones I’ve been able to find. I was giving him two a day, but I’m trying one a day now because he started to bloat again on two and seemed to do better with just one. I’m just afraid that he’s not getting enough food with one pellet. Most of the time he’s fine after the water changes, but there are days when it just seems to upset him. How often should I be changing the water? I was under the impression that if you tested it and all of the tests came out fine, that the water was good? Did I miss understand something?

    • Clementine
      Clementine April 27, 2016 at 4:06 am - Reply

      It depends on the tank size and number of fish in the tank, but if he is your only one and he has at least 10 gallons then at least 75% weekly. Tests are good but they don’t tell you everything. At this point I’d be willing to assume it isn’t diet related.

  38. Shay April 28, 2016 at 4:15 pm - Reply

    Okay, thank you! πŸ™‚

  39. Hannah Lunde May 2, 2016 at 5:30 am - Reply

    MY fish haven’t been swimming around. And are usually around at the bottom except when I’m feeding them or if I come into the room. I do change 50% weekly. Could IT be that their tank is to small and that There isn’t enough space to swim in?

    • Clementine
      Clementine May 4, 2016 at 4:02 am - Reply

      Yep, could definitely be the case, depending on how many you have and the gallons of the space they are in.

  40. Hannah Lunde May 4, 2016 at 1:15 pm - Reply

    OK thank You so much!! I’m going to buy a bigger tank!???

  41. Matt May 7, 2016 at 8:28 pm - Reply

    So that’s why my goldfish always had long trails of poop behind them! Also, do you think algae wafers would be a good combination with pellets?

    • Clementine
      Clementine May 9, 2016 at 4:35 am - Reply

      Absolutely πŸ™‚

  42. Meg May 12, 2016 at 5:20 pm - Reply

    This is an interesting page – confusing, given all the other goldfish care sites – but interesting and fun to read I do have a couple of questions, though.

    1. Are you a veterinarian or do you have other qualifications as an ‘expert’ against all the other self-styled ‘experts’ in the goldfish world? There is now so much information/misinformation/expert advice/conflicting information about caring for goldfish, that those of us who do care for our fish and have striven in vain to find truly definitive advice on the Internet are likely, by now, just to go off and do whatever our common sense and instincts tell us is the right thing to do.

    2. None of the experts mentions edible herbs. My fantails like celery leaves. Would lovage, which belongs to the same family of plants, do them harm or good? I grow my own lovage so I know (as opposed to commercial celery) that it has not been contaminated by herbicides or pesticides. Of course when I feed them chopped celery leaves, I do wash them thoroughly first.

    3. No-one mentions any other herbs either. I wouldn’t give my fantails chives, obviously, but I wonder if chopped basil leaves, small thyme leaves, chopped mint, sweet cicely, lemon balm, sage, fennel, dill, oregano, and/or French tarragon would be good for them or not. Rosemary, of course, would be inappropriate as the leaves are too hard.

    4. No-one mentions baby bok choy, either, although I’ve been feeding occasional small amounts of washed, chopped baby bok choy leaves to my fantails for ages and they love it and prove it by being fit, beautiful and active. . . and there’s never a morsel of bok choy left to rot!

    • Clementine
      Clementine May 14, 2016 at 10:23 pm - Reply

      Good questions, Meg! I’ll do my best to answer them…

      1. While I am not a “certified” veterinarian, my advice comes from my own 10+ years of experience keeping goldfish, as well as many years researching and talking to other hobbyists nationwide on the subject. In fact, it was only by intensively educating myself that I was able to overcome much of the misinformation given to me and others by self-styled veterinarians, leading to the death of many goldfish – both my own and those of people I have counseled.

      2 & 3. Celery leaves are fine for goldfish, as they are mild. As to the other herbs typically used for seasoning foods, I wouldn’t use them as a fiber source because they are more pungent, and better suited for culinary or even medicinal use IMO. However I wouldn’t discount it if it works for some people.

      4. If you have it available to you, there’s no reason not to use bok choy. As a side note you can also feed beet leaves, though they do make more of a mess. πŸ™‚

  43. Tiffany May 14, 2016 at 1:46 am - Reply

    I just bought a new house and found we have goldfish in a small pond. I bought some flakes for them but I’m to busy at the moment to go and buy some pellets how much and how many times do you think I should feed them in the meantime?

    • Clementine
      Clementine May 14, 2016 at 10:28 pm - Reply

      Of flakes? Probably a very small pinch per fish. It’s pretty hard to give a definite amount.

  44. maddie May 19, 2016 at 3:05 am - Reply

    I love this website soo much! Thank you for all of this great information. I feed my fish pellets most of the time and freeze dried brine shrimp every once and a while. I realized that i should be feeding them more veggies. I am getting a bigger tank soon and I would like to know where i can buy these aquarium plants. Thank you so much!

    • Clementine
      Clementine May 23, 2016 at 4:36 am - Reply

      Aww, thanks maddie! You are more than welcome. For sources of live plants… try eBay, Amazon or Aquabid.

  45. Wendy May 22, 2016 at 9:12 am - Reply

    Hi, I have a pond goldfish which was floating on his side for a couple of weeks. Eventually I have brought him in and he is in a 200L tank now. I put tap water conditioner, aquarium salt and swimbladder medication in the water and he is much brighter but still floating to the top occasionally . I am worried because he def hasn’t eaten for 4 days since I brought him in. He ignores peas and the pellets I feed them on normally. Should I buy a pond plant to try to get him to eat? Should I put another fish in with him as he keeps going to his reflection in the tank?I He doesn’t swim to the top at all. I have a filter and an air stone going all the time. Sorry for all the questions!

    • Clementine
      Clementine May 23, 2016 at 4:45 am - Reply

      Don’t feed if he won’t eat, it will only decompose in the water and foul things up. Another fish will only add to the waste load. Keep his water clean and fast him is my advice.

  46. Christopher Cummings June 4, 2016 at 9:10 pm - Reply

    The Goldfish hobby is awesome !
    I’ve learned a lot since starting with three fan tails in a ten gallon set up and having the tank turn green
    Thankfully the three survived and now live in a 29 gallon.
    Still using flakes, but ready to switch to pellets soon.
    One thing i found strange was when you suggested that no other fish live in harmony with GF’s
    I have three algae eaters that have lived with them perfectly for over eight months, no issues thus far, The tank does however have shelf rocks that create lots of hiding spots for the AE’s , however the Golden AE stays out all day and has no fear of the three big fat fan tails.
    Thanks for an excellent site ! Love the graphics too.
    Chris

    • Clementine
      Clementine June 5, 2016 at 4:17 am - Reply

      Gotta agree with you there, Chris – the hobby is awesome indeed! Glad to hear you liked the article. πŸ™‚ I will say that even just within the last few days I’ve had several people report incidences with algae eaters & goldies…

  47. Jenn :) June 5, 2016 at 11:59 pm - Reply

    Howdy Clementine.
    I pray and hope that you and all of your fish are doing well and swimming happily. πŸ™‚
    I just wanted to tell you that your article is quite helpful, fact-filled and enjoyable. Congrats. Quality writing and the sharing of information are difficult and you’ve done a great job.
    Your answers to the questions asked are informative and helpful.
    This is a great site. Thanks for the work and your sharing of knowledge.
    It’s a commendable talent. Yeehaw!
    God Bless, Peace and Thanks, Jenn

    • Clementine
      Clementine June 6, 2016 at 2:14 pm - Reply

      Hi Jenn, thank you so much for your thoughtful words! I’m flattered! They mean a lot to me, and it’s great to hear you are finding it fun to read. Happy fish keeping! πŸ™‚

  48. Matt June 8, 2016 at 2:29 pm - Reply

    Brilliant write up and funny too, I learnt a few new items to feed my fish and how to stop them devouring the live plants by substituting the tank with peas and other fruit and veg.
    Many thanks for the knowledge you provided I will pass it on to others to read.

    • Clementine
      Clementine June 9, 2016 at 2:19 am - Reply

      Thank you, Matt! Much thanks for your positive comment πŸ™‚

  49. Mandy June 10, 2016 at 9:51 pm - Reply

    I love this article so much. I’ve been going mad trying to find some decent fish feeding info. My fish passed away a week ago and I will be picking up a new friend Monday. A 1.5-2 inch Black Moor, but I haven’t had a goldfish since I was a child. Just wondering how many pellets to feed a young fish? I purchased some 2mm North Fin slow sinking pellets because my other fish loved them. No fillers, good ingredients and the company is local. And should I feed once a day or more than once? I will be clipping some leafy greens into the tank as well.

    Also, are goldfish bothered by water current? I’ve been trying to find a balance between proper surface agitation and possibly upsetting the fish.

    Thanks in advance and happy fishkeeping!

    • Clementine
      Clementine June 11, 2016 at 4:28 am - Reply

      Glad you liked it, Mandy! πŸ˜€

      A young fish will need smaller, more frequent feedings because their metabolism is much higher. I would do a couple pellets a few times a day, provided water changes are upped.

      Re water current… the only way to know if it is too much is to watch the fish’s behavior. If they are being blown around or huddling where there is less current, too much.

      • Mandy June 11, 2016 at 4:39 am - Reply

        Thanks so much for the quick response! One more quick follow up question. If I feed multiple times a day, how many water changes should I perform each week? I was going to do a couple, but I can do more.

        Thanks again, this is very helpful to someone who is a little nervous. πŸ™‚

        • Clementine
          Clementine June 14, 2016 at 1:21 am - Reply

          I would go for at least every other day, preferably daily.

  50. Nando June 19, 2016 at 9:10 pm - Reply

    Hi Clemintine
    I have acouple questions we went to the fair this past Thursday an my kids won 5 gold fish. Now I’ve read some articles that give you misleading info I’ve cleaned the cups twice since we got them (today’s Sunday) one website said garlic another said lettuce. We’ve given them lettuce since we got them an only small pieces an acouple once a day. Today I noticed one of them has there a bump on the stomach I looked up pregnant gold fish an I’m still not sure because it only on one side. How do I know if it is pregnant an should I seperated her from the others? I cut up a gallon jug of milk to put them in today an I’m not sure if it was changing the water or trying the garlic that made one dye within minute of giving the garlic an changing them into the jug from the individual cups. What do you think I didn’t see anything in your article about garlic so I’m taking a wild guess that’s what it was? I can’t get them a tank until next month I live off SSD an can’t get some pellets for another 2 weeks so could they live in the jug for the time being an off lettuce an grass? What about the banana thing? (Dried out or peels?) I have about what I can grab in my own kitchen for the next two weeks what can I do?

    • Clementine
      Clementine June 20, 2016 at 4:31 am - Reply

      Until you can get pellets, stick with simple veggies like peas, lettuce and spinach. Peas will provide the needed protein. They can live in the jug if you change out the water daily and feed sparingly. As far as pregnant, what you are describing does not sounds like pregnant, but it is hard to tell without a photo. If the bump is on the outside it could be a tumor, if it is simply larger on one side it may be eggs…

  51. Mindi June 19, 2016 at 9:28 pm - Reply

    Do goldfish care about how much light they get? Mine are not next to a window, but should get indirect light during much of the day. Is this a concern for them? Should I move them close to a window?

    • Clementine
      Clementine June 20, 2016 at 4:32 am - Reply

      Indirect light is perfect for goldfish πŸ™‚ As long as it isn’t too dark, they should be fine.

  52. Gucci July 2, 2016 at 5:44 am - Reply

    First of all, thank you so much for your time and dedication to this site. It is so easy to read and the hilarious comments help the usual boredom strike. I was brought to your site by the blog “What to do when your goldfish dies”. I’ve had many types of Fancy Goldfish over the years (when I was younger) with many casualties, but the one that hit me hardest is spending $200 on 6 Ranchu’s recently (including shipping and import fee to Hawaii, NOT including water/electric bill, 100 gallon Rubbermaid tank, sponge filters, air pumps, etc. etc.) and having one of my red and whites pass away today. Your blog really made me feel a bit better even if I am still heartbroken. I made the amateur mistake of feeding Repashy Solient Green then giving into the sad faces of being hungry and added Hikari flakes in. Cause one of my baby red and whites to become bloated and die today. I did a 30% water change today and I plan to only feed Repashy once a day for the next couple days. The other 5 are doing fine, and I wrote to the seller but not counting on a response for I had them a week now. The water quality is exceptional due to media being in my established tank for a couple days. Stress from shipping, possibly previous health issues, and me (idiotically) washing out the sponge filter and media one day, plus then overfeeding led me to this and I can only blame myself because a part of me knew I was doing something wrong. The 2 5-inch Calico ranchu are looking good, but my 3 smaller red/whites look as if they may be suffering. ? And one may be close to death. I don’t know what else to do besides continue daily water changes and possibly a massive 90% one (although my perfectionism comes in and I can’t figure out how much is 90 gallons in that tub so I’ll have to fill 5 gallon buckets 18 times so proper salt/water cleaner can be added) but it’s a small price to pay considering what a idiot I have been and should have known better. Thank you for again for this page and understanding, any tips would be more than appreciated. I’d love to show you a video of my fish and tank but unable to due to this comment box. Hope to get a response soon. -Gucci

    • Clementine
      Clementine July 3, 2016 at 4:03 am - Reply

      Don’t beat yourself up about it, Gucci, all of us have lost fish at one time or another. I am sorry to hear that though, it makes your heart just sink when that happens. It may be that you need to clean your filters though… it sounds like you are thinking that is not a good thing to do? It is quite necessary or mulm builds up which is highly toxic. You may also want to consider testing the water, if you haven’t already. Do you always keep salt in the water? You are welcome to post it on youtube and drop a link if you like – I’d love to see one πŸ™‚

      • Gucci July 3, 2016 at 11:39 am - Reply

        Thanks Clementine! That is exactly how I felt when my fish died, however to all those people reading this, it does get better after a couple of days, and you can’t give up on the hobby because you still have the rest of the goldfishes to take care of, and you can only learn from your mistakes. I sure learned from mine.
        As for the filters, I do clean them quite often, I think rinsing out the media may have been a factor and/or the fact of overfeeding them, or he may just not have been healthy his whole life! It is a mystery at this point and I am not one to “disect” fish to see the causes, it pains me too much to even give them a proper burial (my boyfriend had to do it for me).
        I do use aquarium salt for the water, about 1 TBSP per 5 gallons (as suggested on the box), I forgot to mention that in the email I sent you, also I am sending a video to you of my new cute fish! Hopefully if I am successful in breeding the Calico Ranchu I’ll have a small buisness here on Kauai for other Goldfish Hobbyist and hopefully be able to sell them on your website as well! Thanks again for all your help and reassurance. I’ll keep in touch via email :).

  53. Linda McHenry July 7, 2016 at 8:11 pm - Reply

    I recently bought fish pellets but worry that it takes them 5-6 minutes to munch/mouth a single one. Is that normal? Are my pellets too big? Fish are approx 3 inches long. Pellets are 1/8 inch long and even smaller in diameter.

    • Clementine
      Clementine July 10, 2016 at 4:18 am - Reply

      It could be a good idea to soak them first, might speed up the chewing time.

  54. Fish life July 8, 2016 at 12:52 pm - Reply

    I loved your article. It was very easy to read. I have plants in my tanks (3) and 5 goldfish. I’m getting a new tank soon because I only have a 10 gallon and I recently became aware that I should only have 1 goldfish in there. However, I have been feeding my goldfish flakes ever since I got them (about 1 year), and they seem fine. My local pet store tells me that in a 10 gallon you can put up to 5 goldies, but I realized just a few days ago that he was wrong. How many gallons should I get for 5 regular goldies? And also can you maybe suggest a brand for the pellets? I think that it’s okay if I keep feeding my fish flakes, but I would like to know if I can change from pellets one day, and flakes the other. Please let me know how many gallons, the brand for pellets, if they should be sinking or floating, up to how many plants I can get, if I can feed them both pellets and flakes… but for the tank I can’t get a pond… no room. Thanks so much!!!

    • Clementine
      Clementine July 10, 2016 at 2:37 pm - Reply

      For 5 regular goldies (meaning fancies?) you would need at least 50 gallons, preferably more. I like Azayaka brand pellets, though they are on the pricey end. I would start with as many plants as you can get, if you are getting them to be food. You can feed flakes but it may cause problems so I wouldn’t.

  55. Rach July 14, 2016 at 8:54 am - Reply

    You little diamond. This is all sound advice, can you get this in to print and give to the pet shops!? We have had Bubbleesha a week and soon to get Black Beard to join (guess the age of the kids) the pet shop told us about the pea, put it in whole, oh you have to break it up! Now I know. Going to save your page for further future info. Thanks Clem….from over the pond

    • Clementine
      Clementine July 15, 2016 at 6:19 pm - Reply

      Thank you for your kind words, Rach! I wish the pet stores would be willing to distribute this information, might have to try looking into that sometime…

    • Fishlover October 15, 2016 at 11:13 am - Reply

      Rach, you are absolutely right. People working for the pet shops don’t know anything half the time. Their only goal is to sell you whatever you want and make the most money. Four years ago, I had 5 healthy and happy goldfishes 2 babies and 3 medium sizes for over 3 years. One of them started to get big and I was planning on getting a bigger tank. Then, one day I noticed black spots on their forehead and around their eyes. I thought they were getting sick. I immediately ran to the pet shop and told them about my fishes condition. The guy was like, “Ummm, Ah I know what you need.” He handed me a bottle of yellow powder for $8.95. He said this will get rid of the black spots on your fishes. So, I bought it and took it home. I followed the instructions on the bottle to the teeth and dropped a pinch of this yellow powder. After that I didn’t think much about it and went on with my business. Only 2 minutes after I put this powder in the tank, my wife screamed her throat off calling my name. I run down stair to find all my gold fishes floating at the top of the tank but one small fish. We immediately removed him from the tank and into a clean and fresh water. The other ones we couldn’t save especially the one big goldfish. He was with us for over 4 years. It was sad to see him dead. Guess what, the small goldfish we saved from this deathly accident is still with us in the same tank and gotten a lot bigger. And he is happy too. πŸ™‚ So, yea you should never trust them people at the shop… Do your research online first and then order your stuff online or at your local store.

  56. Ro July 20, 2016 at 6:22 pm - Reply

    Nice Job! Thank You! You Rock (or “swim”)? Thanks!

    • Clementine
      Clementine July 22, 2016 at 4:41 pm - Reply

      You are more than welcome, Ro πŸ˜€ Glad you liked it!

  57. bron July 25, 2016 at 11:09 am - Reply

    http://www.puregoldfish.com/feeding/

    have just saved my 15yr old goldie from certain death…I wrote it all out but recapta page lost it..she lives alone in a 90 litre tank

    she would not move or eat and water cloudy

    highly bad water readings +added parasite tablets , Epsom salts, removed carbon filter and zeolite for now..then did 25% water changes for 2 weeks replaced carbon filter and zeolite..shes fine now

    but cant get rid of the green algae on back ,hard to reach window

    I was told not to get a catfish as they can eat goldies

    so what do I do re algae? thx

    • Clementine
      Clementine July 27, 2016 at 1:34 am - Reply

      Glad to hear she is better πŸ™‚ To get rid of algae, good old fashioned elbow grease πŸ˜‰

  58. Casey July 26, 2016 at 12:07 am - Reply

    Hello! About two weeks ago I won a standard goldfish from a fair, and about a week after that I bought a black moor fish. They are in a large tank and are doing well. I was just wondering about my black moor fish’s tail because I noticed some very very small holes in it. I don’t know if they have been there since I got him or if they just happened. Is this something I should be worried about? Also how long do you think lettuce would last in a tank with my two fish before becoming rotten? Thanks so much!!!

    • Clementine
      Clementine July 27, 2016 at 1:37 am - Reply

      Small holes can be from ammonia. It might also be from the stress of the pet stores, and should heal up. Lettuce will last quite a while, just don’t give them more than they can eat in a week.

  59. Jan July 30, 2016 at 10:05 pm - Reply

    I agree … the main problem for goldfish is overfeeding. My question: If they don’t have food for a week, do you think goldfish are able to slow down their heart rate and go into a type of hibernation state? I think they do. We have goldfish that winter over in an outdoor horse tank, sunk in the ground. The tank includes some fancy fantails who are possibly now 15 / 20 years old. The tank does have a pump, so I would add that an air pump in the tank is also key to a healthy goldfish. We do have live plants in the indoor and outdoor tanks. I don’t see that our goldfish eats the plant in the indoor tank but it does help balance the environment. The plant is growing right along with the goldfish. Thanks for your article.

    • Clementine
      Clementine August 1, 2016 at 3:54 am - Reply

      If the temps are low enough, absolutely. In fact during true hibernation they can survive for months with hardly anything to eat. Good job keeping your fish alive for so long, and I’m sure they appreciate the plants for oxygen and shelter!

  60. Jessica July 31, 2016 at 12:04 pm - Reply

    We just bought two small goldfish for my son. We bought Wardley goldfish crumbles and the owner told us to give them 4 pellets twice a day. However, these crumbles are not pellet- size and are tiny. How much crumbles should we be feeding them?

    • Clementine
      Clementine August 1, 2016 at 3:56 am - Reply

      It’s hard to say without being able to see them, but I would feed them a few times a day with 3 of the crumbles each time.

  61. KK August 2, 2016 at 2:59 pm - Reply

    Nice article with clear explanation, how to take care of gold fishes. Thanks a lot and I got few good points from this article.

    Cheers,
    KK

    • Clementine
      Clementine August 2, 2016 at 3:35 pm - Reply

      Happy to hear you found it useful, KK! Thanks and happy fish keeping πŸ™‚

  62. Carmel doran August 7, 2016 at 9:10 am - Reply

    Hi, I have two goldfish for eleven years now. They both live in a 390l tank and have two filter systems running. The last couple of weeks one has gone of her food. She will eat bloodworms and peas but not the flakes. She sits in the corner of the tank but not touching the bottom. I’m going on holidays soon and I’m worried about her, I can’t except my neighbour to feed bloodworms to her. Help

    Carmel

    • Clementine
      Clementine August 8, 2016 at 3:50 am - Reply

      Fasting will probably do her good, she could be constipated.

  63. Kasey August 16, 2016 at 4:18 am - Reply

    Hi Clementine,

    I have two telescope goldfish in a 10 gallon tank with a filter and one fake plant. They were doing great for the first week until the other day when I noticed they had some white spots on their fins. I thought it was ich. I was told to try and increase the water temperature and add salt in attempts to get rid of the disease. Now the water is looking cloudy and the one fish just stays in the bottom corner of the tank. I was feeding them pellets twice a day and recently got some flakes to add to the mix. I didn’t think I was feeding too much but am now worried. I’ll start only go of them maybe two pellets each? But I’m not sure what else to do. Going to get the water tested tomorrow but is it okay to keep removing water and putting new water in? I’m weird the tap water could be effecting them, too. Any suggestions?!

    • Clementine
      Clementine August 16, 2016 at 4:30 pm - Reply

      I think the more you change the water the better. They are definitely in need of water changes, just be sure to treat the tap.

  64. AME Y August 21, 2016 at 6:16 pm - Reply

    I have bought 2 gold fish from pet shop
    About 2 , 2.5 inches(tail not include)
    How much and feed them
    Also they always play with bubbles and water fall in tank .. Is it normal for them
    Also I have one albino and black tiger shark fresh water in it… They are smaller than Gold fish and quiet friendly
    Is it to keep both in same tank…they together from 2 months

    • Clementine
      Clementine August 22, 2016 at 11:24 pm - Reply

      I wouldn’t put any other fish with goldfish, learned from experience. Playing in bubbles is normal πŸ™‚ You can find a detailed feeding guide for your fish’s stage of life in our book, which I would encourage you to have a peek at. πŸ™‚

  65. RICHARD WALKER August 24, 2016 at 6:43 pm - Reply

    I have a pond, about a quarter acre, a wild duck came by and left water meal. As a result all of my catfish died and I miss the interaction with the fish. I have been treating the muck in the bottom with bacteria all year. I don’t want to poison the pond. If I put in about 150 shubunkin goldfish and spray cold well water will they eat/help control the water meal?

    • Clementine
      Clementine August 24, 2016 at 9:31 pm - Reply

      Not 100% sure, but as it is similar to duckweed there is a good chance.

  66. Patty August 24, 2016 at 9:10 pm - Reply

    I have had goldfish most of my life and know how to take care of them. I have always fed them flake food. Well I ran out and went over to our local feed store and all they had were pellets. I was leery of using them but since I live so far from town I went ahead and bought them. I have 4 fish, 2 are pretty large, have had them for 13 years, so I put about 6 pellets in to see how they liked them. Nope! Wouldn’t go near them. I tried again the next day and still nothing. Well yesterday one of the 13 yr. old fish was belly up. I was so upset but thought “he’s old”, this morning though I found my other 13 yr. old dead too. Now I know something is going on and the only thing I can think is it’s the food change. Any thoughts? I hate thinking I was the cause for their demise. Believe me I went as fast as I could and got flakes. Never again will I use pellets.

  67. Nemo August 27, 2016 at 6:27 pm - Reply

    Is it ok to feed flakes in the morning, and pellets at night? Also…do goldfish need a heater? I wanted to buy a plant for my goldfish, Bubles, but was told it can mess up the water levels…you seem to advocate for them. Any suggestions? I just got this fish from my little cousin who had him in 1 gallon bowl! He’s been upgraded to a 10 gallon πŸ™‚

    • Clementine
      Clementine August 28, 2016 at 3:35 am - Reply

      I wouldn’t do flakes at all. Heater, depends on the room temp. Plant – only will help the water quality πŸ™‚ Good job getting him a bigger tank!

  68. Nemo August 28, 2016 at 4:27 am - Reply

    Thanks for the quick response πŸ™‚

  69. Sarah August 28, 2016 at 1:39 pm - Reply

    I have working goldfish. They live in rain barrels and have an airstone, but not a pump. Their job is to eat the bugs and algae and fertilize the water for the plants. I lightly crush cheerios and oatmeal flakes in a food processor, and that is their basic food. Several times a week,I give them treats, which I cut into 1/8″ cubes: strawberries, melon, cucumbers, legumes, chicken. They like mashed potatoes.

    I’m searching the websites to see if goldfish eat slugs, since I have hundreds available. The consensus is that I should cut them in bits, which I am unwilling to do. I don’t want them rotting at the bottom of the barrel, so I guess I’ll drown them and put them in the compost pile.

    I had 6 goldfish. In 18 months, they have grown from 1″ to 3 or 4″. One died when I had 4″ of decaying leaves at the bottom of one barrel. The barrel was shallow. I thought there was enough surface water so that I didn’t need an airstone. After the goldfish died, I learned that leaves use oxygen to decompose. Now I use the fish net to scrape the leaves off the bottom. It stresses out the fish, so I don’t do it too often.

    • Clementine
      Clementine August 29, 2016 at 5:27 pm - Reply

      Goldfish love slugs πŸ™‚ They will probably eat them whole.

      • Sarah September 21, 2016 at 3:25 pm - Reply

        I finally feed them slugs, and although I can’t say they loved them, they didn’t die. It turns out slugs shrink to about 5% of their original size after a few minutes in water. Why would anyone advise cutting them in pieces? Sometimes I wonder if people have even tried the advice they give. I bookmarked your website, cause you seem to really know your fish poo (I was going to use the more common phrase).

        • Linsey December 1, 2016 at 6:28 pm - Reply

          Clementine, I LOVE this page!! Thank you so much for posting.

          I’m sorry to interject on another conversation, but this was sooo interesting. Sarah, where do you live (i.e. what’s the climate like)? What kind of goldfish do you use to clean your rain barrel? Do you have any suggestions for someone who might be interested in starting this?

          • Sarah December 4, 2016 at 3:03 pm - Reply

            Lindsey,

            I live in San Antonio, TX. The winters are fine here, and I haven’t done anything about the water temp, but both winters have been mild. The summers are very problematic and I monitor the water temp. Now that I have an airstone ($11.99 at Petsmart) in both barrels, I let the water get a bit warmer, but once is it over 85, I freeze an old 3 liter soda bottle of water and add that.

            I got the 19 cent feeder fish at Petsmart. I had to replace at least six, but once they live a month I only lost the one that was due to decaying leaves using up the oxygen.

            Another problem here is the distribution of rain. This year we’ve had 2 times where it didn’t rain for 7-8 weeks. The water would get really funky. I don’t want to use the city water because I read that they don’t like that, and also, the original purpose was to collect rainwater. If it’s bad, I empty down to 5-10 gallons with a pump and add about 5 gallons of fresh to tide the fish over until a rainstorm.

            I said “original purpose”, because now I think of them as pets, and enjoy feeding them.

            The other benefit of this system turns out to be rerouting the excess rain off the patio. We get about an 1-2″ of rain at a time. I don’t have gutters. The barrel is under the spout where two sloping roofs meet at a corner. Before the rain barrel 300 gallons of water was dumped onto my patio right in front of the door. With the rain barrel, I have an overflow spout (male fitting from home depot) with a garden hose attached that runs out to the yard. Just drilled a hole and shoved it in, because it doesn’t matter if it leaks. It was so successful that I added a second barrel in the front. That one is even more effective, since the spout landed on dirt and the splatter and really make a mess. Today it’s raining and the pipe must be clogged because the water is overflowing the sides. Now even my husband is a fan, and recognizes the value.

            Finally, my plants and grass thrive on the water.

            I definitely recommend it.

            If you are interested in photos, let me know. I run a blog for my book club and could post photos on it.

            Clementine, would you post photos. I know I don’t match your quality of care and when I read the your website I feel a bit negligent toward my fish, but imagine how many 4th of July carnival fish might be saved…

            Sarah

            • Clementine
              Clementine December 4, 2016 at 8:35 pm - Reply

              You can upload photos in a topic at the forums πŸ™‚

  70. Willg August 31, 2016 at 5:19 pm - Reply

    Best blog/site ever!
    Hello.
    I’m not into fancy anything, and prefer to give the underdogs a second chance in life. Therefore, I’ve “rescued” feeder fish in a couple of occasions (when much younger) and the experience have been rewarding. I had several live many years and become tamed enough that they actually physically interact with me.
    I’ve read many negative things about the poor feeder fish, but because they are basic gold fish is why I’ve landed on this page. I’m thinking about starting up another rescue mission and want to be as best prepped as possible.
    I don’t have a question per say, but rather would love to hear you 2 cents on these little guys and what would be best to bring them back to good health considering their environment at the pet stores.
    Thanks much!

    • Clementine
      Clementine August 31, 2016 at 8:21 pm - Reply

      I’m flattered, Will! πŸ™‚

      Having recently “rescued” a feeder myself (moved to a pond), I agree that they could use some help from sympathetic souls such as yourself. To do something like what you’re talking about would require a ton of space with a large-scale filtration system for starters, if you plan on rescuing several store’s worth. They would then need to be quarantined and treated for parasites before they could be rehomed. Love to see someone do that though πŸ™‚

  71. Tessa September 17, 2016 at 8:17 pm - Reply

    Two of my fish died from overfeeding. How many flakes a day? Also what does darting mean

    • Clementine
      Clementine September 18, 2016 at 11:35 pm - Reply

      Flakes aren’t recommended for goldfish. πŸ˜‰ Darting is when the fish doesn’t swim peacefully around, but it zips around in an irritated way. Usually has clamped fins.

  72. Asia September 19, 2016 at 4:01 pm - Reply

    Hi, Thank you so much for putting this information together. My son recently won two gold fish at a fair, unfortunately, both of them died although I did my best but didn’t have the a tank “cycled” yet. I am now the proud owner of a 5.5 gallon tank. With this said I have three questions? 1. Would two goldfish be too many for my small tank? 2. An LED light was included with the tank, is it okay for this light to stay on all the time? Can I take it off at night for sleep and during the day, for indirect sunlight, or should it stay on all the time? 3. I realize that I should clean the take once weekly, is this correct? Or too soon? Along with cleaning, once I replace the water (50 or 90% clean, and I add conditioner to the water, is it same for the goldies to be immediately in that fresh conditioner? So this ended up being more then three questions, but three topics of questions. Hope that is okay. Thank you again.

    • Clementine
      Clementine September 21, 2016 at 3:30 am - Reply

      Hi Asia! Sorry to hear about losing the fish πŸ™ You will find all the answers to your questions (and much more) in our book, The Truth About Goldfish, which I highly recommend checking out. It also comes with one-on-one support so if you ever have questions I can help you personally πŸ™‚

    • Sarah September 21, 2016 at 4:03 pm - Reply

      Asia,
      You’ve probably read by now that 5.5 gallons is a bit small. But your ability to keep the fish alive in that tank depends on how many houseplants you have. Seriously! Your plants want that dirty fish water. So you will be motivated to take a gallon or two every few days for the plants. Then you have to replace it with fresh water. Your fish and your plants are happy.

  73. Rodney September 25, 2016 at 12:53 am - Reply

    Reading JAN’s reply about keeping goldfish overwinter in a stocker tank and , I believe, Clementine’s about fish hibernating in the bottom of the pond/tank, I would like to more about their locations, and set ups.
    I am in Idaho and gave put goldfish in a clawfoot bathtub outside. I have just bought a submersable filter and a 200w aquarium heater. Do you think this will work?
    Thanks, Rod.

  74. Ozzi September 26, 2016 at 10:36 pm - Reply

    Thanks for the most interesting site. I have a pond with two thousand gallons, water lilies and a variety of other plants. When I started the pond I let it stabilise for a few months before adding six goldfish. The pond turned green so I installed a filter which helped but the fish disappeared so I bought a few more. Eventually the water cleared a bit and I discovered that they had been there all the time and had been breeding so now there are around sixty or seventy. I have always fed them pellets and they seem to thrive and have grown much longer. The tiny babies are now about four inches long., the big ones about eight inches. I added three blackmores but they disappeared, I suspect they they were eaten as I never saw them belly up. I recently cleaned out the pond because the water had turned black so emptied most of the water, pressure washed the walls and got rid of the rubbish from the bottom. and replaced it with fresh rain water. The fish survived and seem no worse for the trauma but the water turned black again in a few days. The pond is otherwise clean and the fish are happy and of course always think they are hungry. My question is do you have any idea why the water is black and what to do about it. I see some comments about salt, would it be wise to add some to the pond, if so how much for two thousand gallons.

    • Clementine
      Clementine September 27, 2016 at 5:42 pm - Reply

      It might be an algae related thing. I wouldn’t add salt.

    • Linsey December 1, 2016 at 6:34 pm - Reply

      Is it black, or brown? This time of year, a lot of outdoor water turns brown due to tannins in leaves that are falling from trees (kind of like tree leaf tea). Have you tried adding some activated carbon?

  75. Akash October 3, 2016 at 10:03 am - Reply

    Amazing information. Wish I knew this earlier but I guess it’s never too late. I have started feeding broccoli. Needed some advice to know what am I doing wrong. I take a small portion drop it in a glass bowl having water, microwave it for 5 minutes. Hang it in my tank. Only one of my fish out of 5 seems to be interested in it. She really grows crazy nibbling it while the rest nibble at long gaps. She stays there in the same place till the time I remove it. Now, I just want to know for how long can I leave it in there? And is it OK if I drop it in small chunks which can directly fit in their mouths(They eat it that way…Lazy pigs lol).

    • Clementine
      Clementine October 4, 2016 at 4:06 am - Reply

      Probably for a day πŸ™‚ Grazing is better than chunks for digestion.

  76. John October 6, 2016 at 4:17 am - Reply

    Hi, I have 3 fantails (1.5inch) and they get really excited when they see me. Problem is when it comes to feeding time they get all excited and come up and look for food and gulp air like large koi in ponds do. I feed them Hikari sinking pellets. How do I train them not to come up but stay down and wait for the food to fall and sink?

    • Clementine
      Clementine October 7, 2016 at 4:07 am - Reply

      You could try standing a ways back and tossing the food in so they don’t see you πŸ™‚ But gulping at food time is normal.

  77. Aldrin October 7, 2016 at 12:56 am - Reply

    I have one Fantail goldfish and on Bubble-eye goldfish in my aquarium. I fed them 2 times a day. Whenever I put pellets on my aquarium, the Fantail almost eat them all, while my Bubble-eye seems to only get 1-2 pellets everytime, maybe because he is a poor swimmer, I think… What should I do to make my fishes get fair and enough food? Should I put sinking food for my Bubble-eye (Because he is always on the bed floor)?

    • Clementine
      Clementine October 7, 2016 at 4:14 am - Reply

      Maybe separate tanks would be better. Fantails are really competitive. The only way is to train the bubble eye to eat out of your hand.

      • Aldrin October 7, 2016 at 10:44 am - Reply

        You mean, I’ll give food using my hand directly to the bubble-eye? It might bite me, I guess. Thank You for your reply! I appreciate it. ?

        • Clementine
          Clementine October 7, 2016 at 1:49 pm - Reply

          Goldfish don’t have teeth in front of their mouths so it won’t hurt πŸ™‚

  78. Deb October 8, 2016 at 4:30 pm - Reply

    Great information, thank you! So true how they are super beggers. Like my bulldog, will eat till they pop. I have a fantail and now an oranda in a 40 gallon tank. I would like to add a third, but my fantail is super mean. She (really don’t know her sex) will chase new fish around the tank. When I added the Oranda, who is sightly bigger than her, she chased him around so much she tore his back fin. I then put a glass partition and separated them for about a week. She still chases him around a bit, but not to the point of injury She has stressed out a smaller fish to death. ? Why is she so mean? Any suggestions on how to introduce a third or should I wait until I get a bigger tank?

    • Clementine
      Clementine October 10, 2016 at 2:22 am - Reply

      Sounds like a very territorial fish. Sometimes they get that way if they’ve lived by themselves/just with one other for a while, then you bring in another that isn’t welcome. A bigger tank may not help…

  79. Campbell October 13, 2016 at 7:07 pm - Reply

    A great read.mant topics covered.I use a 1400ltr per hour external canister filter and I Change 50 percent of the water once a month.My tank holds 300ltrs and I have five three inch fancy goldfish.Do you think that’s ok. The water looks crystal clear.

    • Clementine
      Clementine October 16, 2016 at 10:27 pm - Reply

      Tank size sounds good!

  80. Kaye Collins October 22, 2016 at 1:15 am - Reply

    One of my goldfish is constipated badly so what would you suggest is the best to help fix that? Is cooked spinach okay or should it be raw?

    Your site is so much help πŸ™‚

    • Clementine
      Clementine October 22, 2016 at 3:59 am - Reply

      Either cooked or raw the spinach is fine. πŸ™‚ It is helpful for fish with constipation.

  81. Janet October 25, 2016 at 7:00 pm - Reply

    Hi, Clementine…First, thank you for the feeding information…very helpful! I have 3 goldfish, one of which is a fantail, and a black moor in a 40 gal tank. I used to feed them three times a day, now I’m going to 1.5 times, as they are really greedy!!!! The fantail is about 4 inches w/o tail, the other two are about 5-6 inches w/o tail; and the moor is about 7 inches w/o tail. I cut back feeding so much because the tank got filthy too fast for me…am I doing the right thing by cutting back the feeding? Thank you for your input….it’s appreciated!!!

    • Clementine
      Clementine October 31, 2016 at 3:56 am - Reply

      Absolutely, especially if the tank is dirty. πŸ™‚

  82. Beverly Savage October 31, 2016 at 10:48 pm - Reply

    Help! I have had two gold fish for about 11 years, maybe 12. I have fed them flakes (now I know this isn’t good) with treats of plants and freeze dried blood worms. Last week, one of them suddenly died. He looked sick one evening, no exterior signs, and was dead in the morning. I did a 1/2 water change and the other fish seemed fine. They live in a 38 gallon tank on a covered deck in California. The weather is getting cold but never freezes. Now, the surviving fish is sick — he has white areas and his fins are wearing away in areas. However, it doesn’t look like ich and doesn’t look like fin rot and it came on all of a sudden and it very, very rapidly worsening. I got a medication that treats a variety of fungal infections, changed 1/2 of his water. Another other suggestions?!?!

    • Clementine
      Clementine November 1, 2016 at 4:02 am - Reply

      Responded via email πŸ™‚

  83. Elzabe November 3, 2016 at 7:54 am - Reply

    Hi there

    I recently got 2 lionhead goldfish, the one has a quite large cap and seems to have difficulty swimming at times, as he tends to float around upside down a lot. This morning I noticed that this fish has a bloated belly and is upside down more than anything else, so I stopped feeding them both. Any ideas about what could cause this? They are in quite a big tank, which was cycled, with plants and rain water.
    Thanks!

    • Clementine
      Clementine November 5, 2016 at 10:47 pm - Reply

      There are so many things this could be linked to, the only real way to tell is to go through the checklist in our book and then follow the recommended steps.

  84. Kristy November 5, 2016 at 6:05 pm - Reply

    I have 3 small goldfish. Can they snack on hydroponic butter lettuce?

    • Clementine
      Clementine November 5, 2016 at 10:48 pm - Reply

      Yep πŸ™‚

  85. M November 8, 2016 at 3:50 pm - Reply

    I have one gold fish and week ago I bought a new one . I don’t know what happened for my goldfish she didn’t play and swim loke before i add the new on. Also, she didn’t eat like before. She play with new one not all the time and they allways flow each other and the like stays at the bottom

    • Clementine
      Clementine November 10, 2016 at 4:12 am - Reply

      Sounds like she isn’t feeling well. That is common after adding a new fish.

  86. Alyssa McClain November 10, 2016 at 7:54 am - Reply

    You’re supposed to feed them everyday right? What would you feed them when you’re not giving them pellets? Would you alternate days between peas and pellets? Because I feed my fish flakes and I think one has swim bladder because it is bloated and swims wierd.

    • Clementine
      Clementine November 13, 2016 at 12:55 am - Reply

      Alternating is a good plan between peas & pellets πŸ™‚

  87. Ian November 16, 2016 at 12:45 pm - Reply

    Hi great advice about feeding.
    We have a comet type goldfish that has just celebrated his 10th birthday, for his birthday I got him a larger tank (50gal), better filtration and some lights. I set the tank up, using the water from the old tank and all the old media too. He looked great in his new bigger tank and was enjoying the extra swim room, then disaster struck, I woke the very next morning to a horrible noise from the pumps, a soaking wet floor and the fish lying apparently dead on the gravel! The tank bottom had cracked from end to end and all water had escaped. I put the fish in a bucket with de-chlorinated water and he slowly came back to life, I got another new tank, this time I had to cycle the tank from new with the fish in which I now is far from ideal. Happy to say that a few weeks on the tank has stabilized and fish seems as lively as ever.
    Your advice on keeping Goldfish has been invaluable to me and is what spurred me on to improve the conditions that I was keeping the fish in…too small a tank, over feeding and poor water quality. so thank you.
    My question regarding feeding is how much should I feed a large mature goldfish? he is 10 inches form nose to base of tail.
    I have switched from flakes to New Life Spectrum 3mm sinking pellets…They were getting lost in the gravel, so I now feed him on a small dish placed at the bottom of the tank 3 or 4 pellets twice a day, there are a few bunches of Elodea in the tank which he does nibble on from time to time.

    • Clementine
      Clementine November 27, 2016 at 7:33 pm - Reply

      Aww what a great story, Ian. I’m glad your comet made it through that fiasco! How you are feeding him is good.

  88. Allan D November 24, 2016 at 5:04 am - Reply

    Excellent website, very informative, quietly hilarious, I actually read the entire contents! Keep up the great work.

    • Clementine
      Clementine November 27, 2016 at 11:25 pm - Reply

      Glad you liked it, Allan!

  89. Steve November 30, 2016 at 2:08 am - Reply

    We had 5 beautiful Orandas in a 46 gallon tank, I’m running a lot of filtration and biomedia (fluval FX6). I have one fish with a pea-sized tumor on its back (been there for 4 months), another fish that started sitting on the bottom of the tank, and my biggest fish (about 4 inches) in length just died :(. I tested all my water parameters, everything is good (nitrate ~30ppm but it stays at 30-40 even with weekly 75% water changes). I recently fed them some garlic because I was worried about parasites. Could the garlic have killed her? I read your article and also worry that I was overfeeding, but this fish was healthy yesterday and died today. I feed Saki-Hikari green pellets and was feeding de-shelled peas weekly. Any help would be appreciated!

    • Clementine
      Clementine November 30, 2016 at 7:48 pm - Reply

      Feeding garlic can burn the fish’s throat if done incorrectly, but it shouldn’t cause death. There is likely more at play with your tank’s environment.

  90. Linsey December 1, 2016 at 6:36 pm - Reply

    Thank you so much for all the wonderful information (and so entertaining that I read it all the way through!).

    I’ve never considered hand feeding my fish…going to try it right now.

    • Clementine
      Clementine December 4, 2016 at 3:07 am - Reply

      Thank you Linsey! Glad to hear you liked the article.

  91. Holly December 5, 2016 at 3:11 am - Reply

    Wonderful article! I recently acquired my first fish- a fantail that’s about 5″ long including tail- when someone place him on the counter in a small container where I worked and walked out. No one even saw who it was. I fell in love with him, took him home and set up a 6.6 gallon tank for him until I can get something bigger. I had no idea how much to feed though and advice seemed confusing. I added plants from the beginning because I like plants (have even considered an aquarium with just plants in the past) and now I feel so much having read your article. Thank you for the time you took with such a basic subject.

    • Clementine
      Clementine December 11, 2016 at 5:05 pm - Reply

      What a special way to find a new pet, Holly! I’m so happy to hear you liked the article. Goldfish definitely do appreciate plants for many reasons πŸ™‚

  92. Todd December 5, 2016 at 7:29 am - Reply

    Hi Clementine,

    Thank you very much for the advice. What temperature do you suggest for fantail goldfish and is 6 in a 107 litre tank ok? Thank you

    • Clementine
      Clementine December 11, 2016 at 5:06 pm - Reply

      6 fish is a bit much for that size, Todd. I wouldn’t do more than 3 in that tank. Temperature is best in 70 to 80 degree F πŸ™‚

  93. Mike December 14, 2016 at 12:41 pm - Reply

    Great site. I have a fantail goldfish about 7 years old. He lives in a 200lt tank on his own and I recently had some issues where he was on his side one morning and wasn’t able to swim straight. Cutting a long story short it turned out to be over feeding him with flakes and it took several weeks for him to start to swim properly again. I went through many websites to see what was wrong but eventually found someone who gave me some good advice which was to starve him for 2-3 days and star feeding him bloodworm in the morning and 1-2 cooked peas at night. This has been fine for about 2 months but he’s developed red blood spots on his finds and tail but more worryingly quite a few red spots on his underside which he has never had before. I do regular water changes and the water was tested by a fish shop pro and found to be near perfect so I don’t think that has anything to do with it.

    He has also now lost his appetite so I’m fasting him for a couple of days to see if that helps. Can you tell me what may be causing the red spots? They seem to fade after a water change but the belly ones look quite angry.

    Thanks in advance. Mike

    • Clementine
      Clementine December 15, 2016 at 7:10 pm - Reply

      Blood spots are a result of improper environmental conditions.

  94. Jade December 19, 2016 at 10:03 am - Reply

    I’ve got three baby goldfish which I’ve had probably around 6 months. To start off I was feeding them liquid fry food, then I swapped to shrimp which had been frozen before. That s fed them well but then began to cloudy the water. Then I crumbled up some pellets from my adult fish food and then bought some flakes and have been crumbling those alongside giving them the liquid fry food again. They loved the flakes at first but recently a few have died. Currently I only have one healthy looking one. One is still alive but is swimming upside down, and the another is small and underdeveloped. The healthy one just looks like a normal little goldfish, but I want to know what I should feed them next at this stage. I’d like to keep the healthy one at least. It doesn’t seem to be interested in the food I’m giving them anymore.

    • Clementine
      Clementine December 19, 2016 at 8:55 pm - Reply

      If the fish isn’t interested in brine shrimp, it could be a sign of a health problem. All goldfish of all ages love it.

  95. Kimberly December 19, 2016 at 11:51 pm - Reply

    Hi! Great article! One quick question, I have had my common (or comet?) goldfish for almost 4 years now, and have been feeding him the TetraFin goldfish flakes since I got him. Would it still be a good idea to switch to the pellets, or a bad idea since he is so used to this food? He is in a 55 gallon tank by himself with an air bubbler, a Marineland Penguin 350 filter and a Marineland Penguin 150 filter (350 has 4 carbon filter cartridges and the 150 has 2). He is about 5 or 6 inches in length from snout to the end of his tail (approx.). Thank you!!

    • Clementine
      Clementine December 21, 2016 at 8:52 pm - Reply

      I would make the change gradually πŸ™‚

  96. Jh December 25, 2016 at 5:10 pm - Reply

    I make my own gel food for my goldfish and i feed them ones a day and do water changes of about 20 to 30% every week and this morning i notice my telescopic goldfish one eye is biger then the other an its body is little bit more swollen and the scales is starting to stand up i separate her from the rest wit fresh water and epson sold wat will you recommend to safe her life en get her back to health please help.

    • Clementine
      Clementine December 26, 2016 at 5:04 am - Reply

      You will have to correct the environment of the fish before it can heal. We talk more about this in our book and offer 1-on-1 support.

  97. Priya January 4, 2017 at 3:32 am - Reply

    Hi Clementine,

    Season’s greetings. Just wanted to know your thoughts on feeding the goldfishes ‘TETRA BLOOD WORMS FISH FOOD’ ?
    I’ve 4 fantails in a 3 foot tank and the smallest is about 2.5 inches and the biggest measures 3.5 inches (excluding the tails), so how much should i feed them?

    Also any thoughts on feeding the bloodworms to guppies, neon tetras etc?

    Cheers,
    Priya

  98. James Thomas January 5, 2017 at 11:12 pm - Reply

    My pond is only a foot and a half deep and I have lost some goldfish over the past few years so I decided to bring them in… I brought my goldfish in from the pond this winter… They are in 35 gallon tanks which I run a filter… My question is, since I don’t use a heater do I treat it like they are in the pond and stop feeding when the water temp gets low 50’s (tanks are in a non heated garage) … I had one tank where the fish started getting that black stuff but i figured it was the ammonia level and that I was feeding them too much or too many fish in tank… So I changed out 50% of the water… I have other empty tanks to use but no other filters… Is it really necessary to run a filter if I act like the tanks are the pond?… I don’t run the pond filter in the winter anyway… Love this page, very informative…

    • Clementine
      Clementine January 13, 2017 at 6:26 pm - Reply

      Black stuff would probably be from ammonia; the tank could definitely be overcrowded.

  99. Robert E Dargis January 7, 2017 at 6:14 pm - Reply

    I just put two Blue Shubunkin in my 75 gallon aquarium. I was wondering what is the optimal amount of protein and fat to feed them, what is too much. I read on another website not to give them more than 30%. The pellets for my other fish is 40+%. Is this bad for them?

    • Clementine
      Clementine January 13, 2017 at 6:43 pm - Reply

      It depends on how old they are.

  100. Jerry Hudson February 15, 2017 at 5:40 am - Reply

    I found a 10 gal aquarium in a house that has been empty with no electricity or heat for the past 3 months. There were two goldfish alive in the aquarium. We have had a fairly mild winter here but some days over the winter were single digits and at or below freezing. I tried my best to save these fish. Put them in a small 1 gal bowl to transport home. Water temp was at 50 degrees so I matched temp in the bowl. It took me a day to clean the 10 gal aquarium out and match the water temp of the bowl they were in which had risen to 65 degrees. I used well water put 2 start up kit tablets in the water. Anyway the smaller of the two died during the first night. The other one seems ok for now and is back in the aquarium after it was cleaned and a water and gravel change. The pump does not work so I will get another. These fish survived in a dark house with no heat or food in the winter until I tried to save them. There was an almost full can of flake food sitting beside aquarium when I found it. Any advice or suggestions on how to save this remaining fish. Thanks Jerry

    • Clementine
      Clementine February 17, 2017 at 4:57 am - Reply

      Lots of water changes until you can get a new pump.

  101. Lizzie February 16, 2017 at 8:08 pm - Reply

    Hi – Great and cute article! I just got a gold fish for my office – I can’t be here on the weekends tho – will he be ok? I didn’t know if there’s some kind of slow acting food cube/pellet… thank you!

    • Clementine
      Clementine February 17, 2017 at 4:59 am - Reply

      He should be fine.

    • Stormie DeMinck April 6, 2017 at 4:07 pm - Reply

      Hi lizzie there are automatic fish feeders at Walmart for like 13. You set the times and it only let’s out what food you might use.

  102. Ann February 18, 2017 at 4:41 pm - Reply

    We just 3 new koi for our aquarium, the store says not to feel them for 1 week, is that correct?
    Thank you!

    • Clementine
      Clementine February 19, 2017 at 11:01 pm - Reply

      Not sure about koi…

  103. Jeevan February 20, 2017 at 7:18 am - Reply

    Can goldfish eat strawberries, or any berries?

    • Clementine
      Clementine March 7, 2017 at 4:43 pm - Reply

      They probably can, but fruit typically contains too much sugar and is not a natural food for a goldfish.

  104. Marylin February 21, 2017 at 9:45 pm - Reply

    I cannot thank you enough for the wealth of information you have provided above. I am a new goldfish owner & knew little of what you have explained. I attempted to download the checklist regarding the 5 steps for caring for your goldfish. I believe there must be a problem with the link. Just wanted you to know. Thanks, again, for providing such invaluable info. Will definitely be getting your book.

    • Clementine
      Clementine March 7, 2017 at 4:44 pm - Reply

      Thanks so much for your kind words, Marylin! Maybe you could check the spam box, or try to download it again. Hope it works for you! πŸ™‚

  105. Shernon February 25, 2017 at 10:13 am - Reply

    Hello!
    My Goldfish has its fin gotten eaten by other fish! I separated it due to its scales dropping off and blood marks! After a few days of isolated and treatment it became better! And I placed it back to the original tank. However my goldfish is unable to swim properly due to its injured fine but still eating. After a few week my goldfish was found overturned and not eating. What should
    I do?

  106. John March 3, 2017 at 9:49 am - Reply

    In the book, u said that we can feed salmon. Will it be very oily if u put it in the tank? Can u feed prawns to the fish?

    • Clementine
      Clementine March 7, 2017 at 4:54 pm - Reply

      Don’t use canned salmon or any fish with added oil. Fresh salmon from the fish counter is what you want.

  107. Alex March 10, 2017 at 12:36 am - Reply

    I get that each fish only needs a few pellets, but how many times per day should they be fed? Lots of places say 2 or 3 times a day, but are you saying just the once?

    • Clementine
      Clementine March 12, 2017 at 10:24 pm - Reply

      Once or twice daily.

  108. Annette March 14, 2017 at 4:31 pm - Reply

    Thank you for the great instructions! One week ago my son won a goldfish at a fair and he’s more active than any goldfish we’ve ever had. I’ve had goldfish on and off for the last 30 years and always fed him/her 1 pellet per day, but I’m wondering if I should feed the new guy more because he’s burning off so much with the crazy swimming?

    • Clementine
      Clementine March 26, 2017 at 8:44 pm - Reply

      They won’t starve. Just make sure they aren’t wasting.

  109. Amber Marchand March 14, 2017 at 11:19 pm - Reply

    I never knew so much amazing facts about goldfish thank you for the facts. Anyways my goldfish Is in a 2 gallon tank I just have one goldfish and I am hoping to get him/her a new tank one how big of a tank does my goldfish need and how expensive will it be

  110. Jenna March 20, 2017 at 5:18 am - Reply

    I need some help on decidin if my 3 yr old goldish has a tumor or of its something else. Can you please email me at the email I put in. Ty.

  111. M March 25, 2017 at 12:01 pm - Reply

    Hi
    I just changed the fish tank today and I made a mistake 😒 I feed them before I transfer them and i do not know why they didn’t swim they only sits down in the corner😣 How can I fix this problem please?

  112. Adi March 25, 2017 at 3:25 pm - Reply

    Hiya!
    I have flake food for my two comet goldfish, my parents don’t want to spend more money on pellets. I feed my fish once a day in small portions and they seem happy enough.
    However, I’m going on vacation in a few weeks and I’ll be gone for 6 days without anyone home to feed my fish. What kind of slow feeder would you recommend?

  113. Nicole Rios March 27, 2017 at 3:27 pm - Reply

    How many small feeder goldfish do you think I’d be able to fit in a 10 gallon tank?

    • Clementine
      Clementine March 30, 2017 at 5:24 pm - Reply

      Not big enough :/

  114. barbara March 30, 2017 at 3:51 pm - Reply

    I have about 13 4-6″ goldfish in small pond, some I don’t even buy, they just happened, like black goldfish, not the orange and black are mating and I have orange/black goldfish. My problem is feeding them. They live a very long time, one I had for over 9 years until blue Herron ate it. So, enough background. I feed them Omega One medium pallets and wanted to know if I can feed this size goldfish large pallets and how many? Second question is, I have babies every year, can I give them small pallets? So I will never feed them by hand. Please, tell me how to feed my fish, when and how much? I live in Ohio. Thank you in advance.

  115. barbara April 8, 2017 at 3:58 pm - Reply

    I have about 13 goldfish, 4-6″ goldfish in small pond about 3 x 5 feet and 2 feed deep, some goldfish I didn’t buy, they just showed up. The black goldfish I didn’t buy. Now the orange and black goldfish are mating and I have orange/black goldfish.

    My problem is feeding them. They live a very long time, one I had for over 9 years until blue Herron ate it. I feed them Omega One medium pallets and wanted to know if I can feed this size goldfish large pallets and how many?

    Second question is, I have baby goldfish every year, can I give them small pallets or will they find plant food or leftovers and I shouldn’t worry abouy them?
    Please, tell me how to feed my fish, when and how much? I live in Ohio. Thanks.

    • Clementine
      Clementine April 16, 2017 at 10:13 pm - Reply

      They should find enough food in the pond, but you can add egg yolks for the babies to eat.

  116. colleen April 11, 2017 at 10:46 am - Reply

    hi i have recently got 3 lovely goldfish from our local pets at home and we have now discovered that they have ich we have used the medicine we read somewere that putting cloves of garlic in the tank can help what are your thouights on this plz

  117. colleen April 11, 2017 at 10:52 am - Reply

    hi i have recently got 3 lovely goldfish from our local pets at home and we have now discovered that they have ich we have used the medicine we read somewere that putting cloves of garlic in the tank can help what are your thoughts on this plz

  118. Millie April 26, 2017 at 9:57 pm - Reply

    Hello!
    Mother got me Japanese goldfish the other day and i’ve been told to give it 3 pellets in the morning and around 2-3 dried mosquito larvae that i have in the evening. So far i’ve been giving it pellets in the morning and then later in the afternoon i’d give one larvae each 4-5 hours until i go to sleep. I wonder if this is too much since you said 3 pellets should be okay for whole day? I still haven’t put in any veggies, I still didn’t have time to look for the plants.
    I really wanted to make it’s diet diverse so perhpas i should just give it one pellet, one larvae and one flake (if i get flakes) per day?
    I never had a fish before so i’m afraid of making a mistake.
    Please asnswer! Thank you in advance! πŸ™‚

  119. richard1941 May 4, 2017 at 11:54 pm - Reply

    I filled a children’s sand box with water and put some goldfish in it after the water became cloudy green with algae and live mosquito larvae appeared. Since then, the surviving fish are thriving. But at least three cats are interested. I put some concrete blocks in the pond to give the fish a secure place to hide.

    So what to do about the cats? I don’t want to poison them, shoot them, catch them and apply high voltage to modify their behavior, or trap them and have the city gas them because I am not 100% sure they are feral.

    • Clementine
      Clementine May 14, 2017 at 8:41 pm - Reply

      You may want to consider netting over the pond. Google “heron proof a pond”

  120. Allison May 17, 2017 at 3:14 pm - Reply

    Thank you for sharing. I just purchased The Truth About Goldfish from Amazon

    • Clementine
      Clementine May 19, 2017 at 5:06 pm - Reply

      Thanks for your support, Allison πŸ™‚ Hope you enjoy the book.

  121. Cyndy May 18, 2017 at 5:45 pm - Reply

    I inherited a Oranda gold fish this week and already the water is cloudy after I changed it and filter. What to do now. I used distilled water, was that a good idea? I never had a gold fish tank before.

    • Clementine
      Clementine May 19, 2017 at 5:05 pm - Reply

      Distilled water usually has too low of a pH. Try using treated tap water instead.

  122. Bunny May 22, 2017 at 11:15 pm - Reply

    I just got my goldfish today. I have a few live plants in the tank, and I also tossed in a small handful of greens, but I know that eating floating food can sometimes be a problem. Would you recommend that greens be cooked so they sink, or are the floating raw ones okay?

    • Clementine
      Clementine May 23, 2017 at 7:43 pm - Reply

      Floating food is not bad per se, just foods that contain too much air like flake foods.

  123. Em June 2, 2017 at 3:11 pm - Reply

    I have 3 goldfish that don’t seem to like their food.. I feed them flakes once a day they seem disinterested and spit it out.
    I went out today and bought the pellets(small) I fed the fish about 4 pellets and they went after them! But couldn’t eat them, they kept spitting them out. This went on for 10 minutes, so I removed the pellets from the water. What should I Do?
    I also purchased a small moss. Ball and they seem to enjoy it.

    • Clementine
      Clementine June 17, 2017 at 11:13 pm - Reply

      The pellets might be too large?

  124. Susan June 12, 2017 at 1:30 pm - Reply

    I have 2 goldfish that grew to be very different sizes. They were both 3 inches when we got them, and today, 3 years later, one is 6 inches and the other is the same 3 inches. Lately I noticed the smaller one (who likes exactly like a 3 inche white carp) doesn’t get excited to eat from the top of the tank at feeding time. It seems to eat from the bottom more. I give them crisps and flakes once a day. The 3 inch fish has always been skittish. Is it getting enough to eat just from the bottom of the tank??

    • Clementine
      Clementine June 17, 2017 at 11:00 pm - Reply

      If it loses weight, you know it is not eating enough.

  125. Ruby June 20, 2017 at 2:46 am - Reply

    Thank You, for all the info!

    So I was wondering do you happen to have any suggestions on how to get my goldfish to stop eatting air bubbles that float??
    Could I put one of those tank dividers .. but horizontally? Just below the top of the water… or a net?.. or something to stop her from coming to the brim of the water.

    • Clementine
      Clementine June 24, 2017 at 9:21 pm - Reply

      You’re welcome!

      No, that’s not the solution. The solution is figuring out why she is doing it. If it happens very often there could be a problem with the tank or with parasites.

  126. Ferdi June 26, 2017 at 3:54 pm - Reply

    Thanks for so much great information! I loved reading about goldfish food and their diet requirements.

    Rating: 5
    • Clementine
      Clementine June 26, 2017 at 4:01 pm - Reply

      Glad you liked it, Ferdi!

  127. Amy Monkman June 27, 2017 at 5:46 pm - Reply

    Thanks for your great advice! My son has goldfish that I am caring for for a few months. There used to be 3, but now there are only 2. Could the others have eaten the third? In trying to determine what could be the problem, I happened upon your website.
    Also, he uses an automatic feeder with flakes. I don’t feed them myself. I have recommended to him to use pellets after reading your advice on feeding. He likes the idea, so I’ll be doing that plus the plants. He is not sure of his tank size, but thinks it may be 14 gallons. Is this too small? The 3 have been living together fine for 2 years.
    Needing help to care for babysat goldfish

    Rating: 5
    • Clementine
      Clementine June 28, 2017 at 4:16 pm - Reply

      Goldfish can eat other goldfish, but usually only if the other is small enough to fit in their mouth. Otherwise, they may feed off of a dead goldfish their same size. For 2 fancy goldfish that is too small, definitely way too small for 2 commons/comets. I’d recommend checking out our guide on choosing a tank. πŸ™‚ Thanks for stopping by!

  128. Joseph LaFollette July 25, 2017 at 1:08 pm - Reply

    I read some where that a hungry fish is a healthy fish. I feed Monday, Wednesday and Friday only. I feed gel food. They seem to be doing great. What do you think?

    Rating: 4.5
    • Clementine
      Clementine July 30, 2017 at 8:13 pm - Reply

      Gel food is great. But I’d try to feed at least once every day. There is truth to that statement but at the same time goldfish do have daily nutritional needs.

  129. western Thompson July 31, 2017 at 7:24 pm - Reply

    I have just set up my aquarium.no fish yet going through the cycle process.when I do get my fish it will be a juvenile…so what daily amount of gel pellets would you suggest?also when you say greens does that mean salad leaves also?

    I look forward to purchasing your book.butis there a hard copy available?

    Rating: 5
    • Clementine
      Clementine August 9, 2017 at 8:38 pm - Reply

      If you follow the guidelines in our book, as much as they can eat in 3-5 minutes πŸ™‚

  130. western Thompson July 31, 2017 at 7:51 pm - Reply

    After further investigation I can’t purchase your book in British pound sterling as a physical copy?is there anyway you know how this can be done?

    Rating: 5
    • Clementine
      Clementine August 9, 2017 at 8:38 pm - Reply

      Hey Western! I’ve just added amazon.co.uk as a distribution channel. It might take a couple of days for it to show up but you can try searching for The Truth About Goldfish there. Thanks!

  131. Kayla August 5, 2017 at 8:35 pm - Reply

    I have tropical fish food and baby shrimp, I was wondering if it is okay to feed my goldfish these things.

    Rating: 5
    • Clementine
      Clementine August 9, 2017 at 8:19 pm - Reply

      I wouldn’t feed them tropical fish food, but the baby shrimp is probably a go πŸ™‚

  132. sb August 6, 2017 at 3:03 pm - Reply

    can i blend up peas with the skin on in my vitamix blender with out taking the skin off the peas and add to my homemade gel mix

    Rating: 5
    • Clementine
      Clementine August 9, 2017 at 8:17 pm - Reply

      Absolutely, added fiber πŸ™‚

  133. Amy August 14, 2017 at 8:44 am - Reply

    How much flakes should I feed my goldfish at a time

    Rating: 4
    • Clementine
      Clementine August 15, 2017 at 2:16 am - Reply

      That’s pretty much impossible to answer, because with flakes it’s hard to tell vs. pellets or gel food.

  134. Michael August 21, 2017 at 2:58 pm - Reply

    I recently bought two goldfish, but since they’re my first pets the store recommended feeder fish as they’re less expensive to replace if they die. That being said, I really don’t want them to die, so I’m trying to take really good care of them. I just wanted to know if there’s anything that applies only to smaller feeder fish (a comet goldfish and a rosy red minnow to be specific). They haven’t eaten much food (I’ve been using flakes, which I intend to change after reading this article) and I was wondering if it might be because the food is too big for them? They’re pretty small, one is about an inch long and the other is about a centimeter long.

    Also, how big a tank should I have for the minnow? I know 40g for the comet since it’s a single-tailed goldfish, but I can’t find anything about rosy reds.

    Rating: 5
    • Clementine
      Clementine August 22, 2017 at 5:56 pm - Reply

      Glad you’re trying to take good care of your feeder, Michael! Not sure about rosy reds, I’m mostly a goldfish person πŸ˜‰ . I would actually not keep that fish with the comet because when the comet grows big it will probably eat that fish in one second.

  135. Carolyn August 25, 2017 at 5:21 pm - Reply

    I just won a gold fish at a fair.. she gave me flaked food and said to only feed twice a week and not use tap water would bottled water do .. and he seems anxious he try’s to jump out .. would the local Walmart have all I need food tank etc.. Thanks

    Rating: 5
    • Clementine