size of community tank?

[ScuitoAmi150]

What is the smallest size tank where you can keep, 1 betta, and one other fish? If the other fish is less than 1in long?

[kelly528]

The problem with keeping a betta with a fish under an inch long is that

a) Betta can and do eat fish of this size. If you don't believe me, just ask my endlers livebearers :/

b) I cannot think of a single fish below about 1.5 inches in length that is not a shoaling fish or at least social. And I know my nano fish lol!!! Any tetra, danio, pygmy cory or rasbora has to be kept in a group of at least 6 and small livebearers, killies and dwarf frogs need a minimum of 2 buddies of the same species. Smaller creatures have evolved to stick in groups to stay safe and it is really hard to find a small fish that does not conform to this rule.

I would say the smallest possible setup in which your betta could have a tankmate would be a 3 gallon with a zebra snail or 3 or 4 ghost shrimp. You might have to clean it twice a week however.

[ScuitoAmi150]

My new female betta is currently about 1in as is, and I was thinking mosquito fish. But I believe they have to live in small groups...

[dr2b]

What other fish were you wanting to put in with your betta?

oops sorry, I just realized you posted that.

You could get a 10 gallon tank... I mean there are some good deals on those.

[kelly528]

Yeah mosquitos like groups. Better off to get a 10g.

[ScuitoAmi150]

Oh okay. Thank you! How many would have to be in the group?