I have 2 Bala Sharks and they are very friendly with my other fish. They are very beautiful and when feeding they swim in a criss cross pattern that is so cool. Mine very very small when purchased but a yr later they are about 8" long. I always thought that you had to keep Betta alone... But you could mix them with Bala not Red Fin sharks, they are aggressive. email me direct if you like I have several aquariums and through trials and tribulations I know what fish are compatible and who is going to eat each other- LOL |