thanks all, glad to know what he is, and he's getting plenty of TLC, currently is on the mend after a run-in with one of my smaller oscars (13'')
got him in a 6x18''x18'' with a 15'' veil finn O, their getting along alright except when they brush against oneanother. but its not serious.
that's a good sized nic and you are in for a treat if you can get him to color up. Best advice would be to feed as much variety as possible live and prepared.