FSM;1630838; said:Well you got the genus wrong. Its Amphilophus citrinellum.
They get 16" max for males, apparently, but I think smaller than that is more common. They eat pretty much standard foods for large cichlids; pellets, frozen krill, earthworms, etc.
And they are really mean. You could keep one in a 75 for life, but probably not with any tankmates.