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Can 1 goldfish live in 1 gallon tank?

Updated: 10/6/2023
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Wiki User

11y ago

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Absolutely not! Goldfish produce alot of ammonia and put alot of toxins into the water. Good rule of thumb is 1 inch of fish to every 2-3 gallons of water with regular goldfish. For fancy goldfish (lion heads, ranchus, black moors, etc.) You need 20 gallons for the first fish, and ten for every one after that.

So if your fish is gonna get say 6 inches fully grown then you are gonna need to get a biger tank. The myth that a fish will only get as big as his tank allows is way off...If you put a baby in a box and continue to feed it like you would a pet fish in a tank then it will grow and that's that. A guppy or beta sized fish would do well in a one gallon as long as the fish you choose doesn't get any bigger than 1 inch or so fully grown. Goldfish get pretty big and it seems as though you are gonna need a biger tank.

Be sure to never rinse you tank out with hot water or use soap. Hot water kills the good bacteria and soap is toxic. Get a test kit and only change the water as needed because if you over change the water you loose the alot of the good bacteria and it gives the bad bacteria room to grow. Oh and declorinator drops are a must if you use tap water! You can just buy purified water from the store if you don't want to use the drops.

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Wiki User

12y ago
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Wiki User

11y ago

You can certainly have two goldfish in the same tank together provided that the tank is at least 30 gallons in size. This is not only because of how big they can grow, but also because they are very messy fish who produce a high amount of waste.

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Wiki User

11y ago

No, one goldfish needs a 20 gallon tank to itself and nothing smaller. You could get a betta, but really it would be happier in at least 2.5 gallons.

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Wiki User

13y ago

I don't think so cause goldfish can get pretty big and 1 gallon tank wouldn't be enough room for two goldfish.. The recommended amount of water for 2 goldfish is at least 2-3 gallon tanks...

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Wiki User

11y ago

No, just one goldfish needs a 20 gallon tank on it's own not only because of the size they can grow, but also because they are very high waste producers

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11y ago

Yes they can, provided that it's a 30 gallon tank with only those two fish.

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Wiki User

11y ago

No, two common goldfish need at least 45 gallons

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Sheri Wachter

Lvl 2
3y ago

That is my question. It comes from petsmart and gas good reviews. Here is a picture of it that some one posted of there beta in it. It looks happy.

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Wiki User

14y ago

No

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Q: Can 1 goldfish live in 1 gallon tank?
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Can small young veiltail goldfish and small young common goldfish and black moor live together in a common tank of 1 gallon?

No you schould not have that many fish in a one gallon tank. Thats the size of a big betta bowl. And because they are goldfish it is worse their poops are toxins


How many bubble eye goldfish can you have in a 1 gallon tank?

ZERO!! A 1 gallon tank is not large enough to keep any kind of fish in. A Bubble eye goldfish can grow to 10 inches long and so, using the basic rule for keeping fish. "1 inch of fish need a minimum of 1 gallon of water" you would need at least a 12 gallon tank to house 1 Bubble eyed goldfish.


How many goldfish can go in a 3 gallon tank?

None! 1 goldfish can grow anywhere from 5 to 12 inches! It wouldn't live long because goldfish stunt their growth in small (unhealthy) spaces.


How big do goldfish grow in a 55 gallon tank?

Goldfish commonly grow to over 12 inches. The size of your tank would indicate that it is not really large enough for keeping goldfish in. The basic rule of fishkeeping is "1 Inch of fish needs a minimum of 1 gallon of water. Goldfish should really be kept in a pond.


What is better putting 20 goldfish into a ten gallon tank or buying ten 1 gallon fish bowls and putting two fish in each?

Neither! A goldfish needs at LEAST 20 gallons of space, adding 10 gallons for each additional goldfish. For example, I own 2 fantail goldfish, and they live happily in a 30 gallon tank. The reason goldfish die so quickly is because people put them in such small containers, and their bodies stop growing but their organs keep expanding. Goldfish are able to live over 10 years, if cared for properly.


Can black moor goldfish mate in 10 gallon tank?

A tiny little 10 gallon tank is no where near large enough to breed/spawn any kind of goldfish. It is not really large enough to house one goldfish properly.The base stocking rule in fish keeping is "1 inch of fish needs a MINIMUM of 1 gallon of water" Goldfish grow to at least 10 inches so the minimum size for one goldfish would be a (nominal) 13 gallon tank. (No one fills a tank to the brim) That would actually hold about 10 gallons.


How big of tank for 12 goldfish?

For twenty small (1-1.5 inch) Goldfish you should have something like a 30 gallon aquarium.


How many goldfish can I stick in one tank?

1 inch of fish requires 1 gallon of water. Work it out.


What goldfish can you put in a 2 gallon tank-freshwater and not to difficult to keep?

you would have to get a 10 gallon tank for 1 goldfish! you would need a 20 gallon tank for 2 goldfish. Also goldfish don't go well together there just being stored at the store they take the fish out right when they start to be aggressive. sorry bout your 2 gallon tank!!


Can you put 5 goldfish in a 1 gallon tank?

No. The only thing that can go into a 1g tank is a betta, and that's barely okay. PLEASE don't put any number of goldfish in a 1g


What fish do well in a 36 gallon tank?

You could have a school of neon tetras (approx 6), or 1 fancy goldfish


How many goldfish should you keep in a fish bowl?

It depends how big your bowl is if it is below 5 gallons then you should put one. But if it is 1 or 2 gallons then you will have to move it into a 5 gallon tank or bowl at the least.