The best thing 2 do is have identical hides to see which shes prefers, Aswell look up reptile basics Black hides, by far the best hide youll get! But besides all that you should try to keep them both the same because they sometimes will favor a hide and stay on the cold/hot side more so then they should. but with the warming weather and overall temps increases i do find my guys to be more so mid/cool side of tank only on hot side for day or so of there meal.