i fed mine small crickets, and NO feeders. but now i feed him Cichlid Pellets (medium size)by Hiraki. i starved my fish for 3 days and my jar just started eatin the pellets. but u can feed him other things like frozen shrimp, krill, etc...
I have a six incher and he seems to be doing well on blood worms, crickets and krill. Still not taking the aro sticks. I may try the starving method when he gets a little bigger to try to get him to take the sticks.