Otocinclus: Oto Catfish Care Guide ...
Otocinclus: Oto Catfish Care Guide & Species Profile

Will a betta fish kill a turtle?

No, a betta fish will not kill a turtle. However, the turtle, even if it’s small, might kill and eat the betta fish. Even if your betta doesn’t get eaten, it will be stressed and stay in hiding all the time. Therefore, keeping a betta and a turtle in the same tank is not recommended.

If you’re thinking of getting tank mates for your betta fish, here are some great alternatives: