i have 2 of them. wish i was in southern cali as i would keep them in a pond outside all year long. my 220g seems to small for them...
just to watn you, they all seem to go through a turbulent adolescence until they turn about 2 years old or so (my poor oscars and red devil were always being harassed, chased, pushed around,etc) now they seem to be friends though. if you keep more than one in a tank or small pond, make sure you put in some big drift wood or such to mark territory, otherwise there will be trouble.
awesome fish though, kind of like an aquatic dog