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The amount of fish depends on what type want or own. The most popular cold water fish is the gold fish. They are about 2 to 3 inches long. The sizing rule is 1 inch of fish per gallon. I would recommend 1 or 2 gold fish. It is unhealthy for the fish to live in an overpopulated tank. Note to never place 2 or more betas in the same tank or they kill or fight each other.

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13y ago
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13y ago

betas, betta splendens, guppies, least killifish, and white cloud mountain minnows. hope i helped. ~Vixen

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12y ago

You can put any fish in the tank put you have to be careful about the salt water level or your fish might die

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14y ago

No more than three.

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14y ago

A betta or a few guppies.

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Q: What fish can live in a 3 gallon tank?
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Is there a fish that you can get that only needs a 5 gallon tank but is not ugly and not a betta?

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