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Goldfish can get very large; over 20 inches long, but this is not the norm. I would expect that most goldfish would get to about 10-12 inches if provided with a suitable habitat.

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Q: How big will goldfish grow in a 70 gallon tank?
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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.


Can you breed your goldfish in a ten gallon?

No. A 10 gallon tank is barely big enough to keep a single goldfish in.


How big do goldfish get in a thirty gallon fish tank?

Goldfish grow extremely large; fancies will become fatter, and singletails grow quite long. You should only have 2 fancies in a 30 gallon, or one singletail for proper health and growth.


How big of a tank would you need for two shubunkin goldfish and a snail?

you will need a gallon for every inch the shubunkins grow you will need at least one gallon for a snail


Should you put your fish in a bowl or tank?

it depends on how big it is if it is a goldfish or beta it can be in a bowl.If it is one of those big tiger fish or aqarium fish then put it in a big tank. A fish will grow to the size of the tank or bowl. For instance, say a goldfish is in a tank, it will not grow as big as the tank; however it will grow big enough to be able to swim in their environment. The fish will not overgrow the tank. I had a six inch goldfish in a thirty gallon tank.


Will 2 goldfish still grow in a 1.5 gallon tank?

It depends how big they are if they are still small yes and as long as they are not 3 inch's or more yes.


Can a comet goldfish fit in a 1.5 gallon tank?

Absolutely not! Unless the goldfish is half an inch and going to stay that way you are seriously hurting your fish! A comet goldfish will get very big! you need at least a 55 gallon tank for that sucker! Try raising a smaller regular goldfish in a 20 gallon tank. You'd be far better off!


Is goldfish are happy in tanks?

Yes, the bigger tank the better. They actually HATE goldfish bowls. (they're not nearly big enough). Goldfish usually need a 20 to 30 gallon tank


How big of tank for 12 goldfish?

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


Is a 35 gallon tank big enough for a 4 months old comet and common goldfish?

yes


How many fully grown goldfish can go in a 40 gallon tank?

about 10 or 15 depends on how big they are


Will a goldfish grow as big as the tank?

No it will not. It will be runted by the lack of room. In order for goldfish to grow to full size they should be housed in ponds or very large aquaria.