i bought this yesterday from petsmart...the woman claimed he was a jack demsey...but he was all black swirled with a dark creamy color and has a jeweled affect on his body...i had to google jack demseys..and even their shape is different..to me it looks like some sort of oscar....i'm not exactly sure what to do with him..i seperated him and another fish that was dying..but he's still alive..he just doesnt have any energy..