Contrary to popular belief, Betta fish can live peacefully with other fish, provided the tank mates are carefully selected.

Betta fish purchased from a pet store can live ... If they'll be housed with other fish, you'll need a larger tank. Proper filtration and heating are also important: The tank's temperature should ...

Betta fish—also known as Siamese fighting fish ... When released outside their native area, betta can also pose a threat to other species through predation, competition, and disease.