Mostly frozen brineshrimp and bloodworms also some gutloaded guppies everynow and then to keep his killer instincts sharp and he sometimes eats flakes and hikari cichild gold pellets that are supposed to go to my other fish he has quite the appetite!
i have had no luck IDing the other fish other than it is a tilapia so its possible ur right i did a little research and i think its a hybrid of a spotted tilapia and blue tilapia. I found him in my fish trap in my backyard so it could have been anything because people throw all sorts of fish in this lake