I've had 2 lions, a red in my aggressive and a dwarf in a reef. Take a 1/4" dowel rod and carve a narrow tip on one end. Spear whatever live food you are using and the lion will eat the live off the spear as long as it is still moving. When the lion responds quickly to the speared live food, then change the food to a piece of fresh coctail shrimp. When the lion starts taking the coctail shrimp easily, just throw the shrimp in with out the spear. When the lion readily takes the shrimp try other foods. At this point I would start soaking the shrimp in liquid vitamins.