Does betta fish fight goldfish On the other hand, some fish that are described as peaceful can often be extremely ornery. Unfortunately, though, bettas are known to be aggressive and goldfish are known to be fin nippers. If you keep your betta in a tank with goldfish then there’s a strong possibility that he’ll end up getting his fins nipped.

Does Betta Fish Fight Goldfish
In a word, yes! Betta fish are not also known as Siamese Fighting fish for no good reason! Male betta fish are extremely territorial, defending their adopted patch vigorously to all-comers, even a placid goldfish. In Thailand, back in the 1800s, people raised wild betta fish specifically for fighting.