How many times dusting food for leopard gecko?

Leopard geckos do not need spraying although they do need a humidity box. This can be a plastic container inside the vivarium with a hole cut in it for an entrance. Put some damp paper towels or vermiculite inside. Keep this on the warm side of the vivarium. Your leopard gecko will go inside whenever it needs to. All you have to do is keep it damp and clean. Without a humidity box your leopard gecko will get skin shedding problems that can lead to toe loss and eye infections.