What I did to "train" my lion, was initially fed live feeders, and when I would i would kind of show him the fish and bring it up to the top of the tank and have him follow my hand, then drop the feeder right near him. Eventually he associated my hand dropping something in there with food, then i was able to switch over to fresh seafood and frozen silversides. Now he will pretty much grab anything up that i drop in the tank.