When they get big they are psychos to other fish. Very aggressive, they will even beat up their reflections all day long. Mine started eating a green finger leather when it was mad for no reason just started ripping pieces off it, like it was in itââ"šÂ¬Ã¢"žÂ¢s way or something. When I got it it was small, I had it for over a year and a half and finally had to sell it.