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Can I put a male and female betta in a 2.5 gallon tank with a divider?

Updated On September 23rd, 2025

Pet's info: Fish | Unknown - Fish | Male | unneutered

I just purchased a baby male betta fish, can I put him in the same 2.5 gallon tank as my female, but with a divider?

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on May 29th, 2017

You will need to use a solid or opaque divider to obstruct their view of one another. If they can see each other, it can stress them out. As the male matures, he will want to breed with the female and she will spend time swimming as far from the divider as possible to move away from him.

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