I may be getting one any time soon and I need to know some info. How big do these suckers get??? I heard 13'', 8'' what is the truth?? What should these guys eat?? I heard alage, and flakes. Tankmates?? I am going to put him in a growout tank for now. In there already is 1 ID shark, 1. P. Panginus shark, 2 bala sharks, and 1 shubunkin goldfish. Does anyone else keep these? Pics?