What other fishes can i keep with my male Betta Fighter fish?
If I were you, I would buy a larger tank if you want to add more fish. When you do, I think it will be OK as long as you don’t put in another male betta fish. It might be a little risky if you add a female betta. As long as the fish you put him with are not particularly mean. Also, it would be smart to get fish that are considerably larger then your betta. That way if the betta decides he wants to fight, he won’t be able to do too much damage. Betta jaws, in ratio with their body size, are stronger then shark jaws.