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Can I put two betta fish in a half-gallon tank without them fighting?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male | 0.03 lbs

Hi, i have recently (as in today) got a betta fish and was hoping to get another betta, i only have a simple half gallon bowl for the fish and was wondering if there was a way to easily find a surefire friend for him without them fighting or being aggressive to each other

1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on July 7th, 2018

If you put another male betta in with him they will try to kill each other and will succeed. You would need two female bettas to put in, however a half gallon tank is way too small for three fish, and even for one betta this is not big enough. I suggest you get a 10 gallon tank. Then you can put three bettas in the tank and they will be happy (1 male, two females).

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