Hello,
Sorry if this is the wrong forum but I am trying to figure out what this fish is. I recently bought a tank and inherited its inhabitants. The guy I bought the tank from was an idiot and had no clue what the fish was. He is really aggressive and almost seems too big for the tank (it is a 125). I want to get rid of him, but I would like to know what type of fish he is so I can see if a local store will even take him. Sorry for the crappy pics but he is pretty fast and doesn't like to sit still very much. He is mostly black, has a bit of white on his back and some blue high lights on the edges of his fins and some blue lines behind his eyes. (scratch)