He much prefers to chase down crickets and such, but he will also pick through canned insects in a dish. I like to offer a variety. For instance, I tried some silkworm pupa in a can recently. They are high in calcium and he likes them. I feed him a few at a time, but I also feed crickets. I also bought some dehydrated grasshoppers, but they were too dry and he didn't go for those. He ended up flicking them all over the cage...nice!