fat tailed and leopard geckos

Question
can fat tail geckos and leopard geckos be in the same cage without friction

Answer
 Although they are both geckos and eat the same food, they have different habitat requirements because they are from different parts of the world. So it would not be a good idea.
 As a rule, I will never reccommend different species in the same habitat.  One of them will always suffer.