^yep. You can also trick him if he's stubborn. Put a drop of garlic vitamin liquid in the tank every time before you feed him and a drop on the shrimp. Then once he knows that the garlic means feeding time you can get him ready with the garlic in the water, add a drop on a thawed krill, and see how he reacts. It'll smell like what he'll be used to. If it works get a bag if mixed frozen seafood at the grocery (has shrimp, scallops, octopus, muscles, etc..) and try him on each one. You only need the drops if he's picky about eating frozen but it does work on some lions.