i have a peacock im thinking its a hybrid it looks like a red shoulder but is more yellowish color than red. i have him in a 55g tank with 4 other fish 1 other fish same as him but small, 1 ruby red, 1 albino ruby, 1 yellow. i can float him in a net for a few days n let him go n hes right back at it, what can i do to stop it