at first I wasn't sure if he was a male but it was recently confirmed he has been terrorizing the whole tank I don't know what to do. He is the only one of his kind in the tank. He is chasing everything he is about 3in and he has no problem Chasing my 6in bumble bee. I know he won't hurt the bumble bee but for my other fish he's really stressing them out. HELP Any suggestions please
