How old do leopard geckos have to be to be away from their mother?

they are born without their mothers. The female gecko lays her eggs and leaves. In fact, Leopard geckos will eat baby leopard geckos if they see them. Leopard geckos are smart so baby leopard geckos are born already knowing what to do with no help from their mother. They usually never even see their mothers or male children of the mother may even reproduce with the mother.