You need a hide on the cold side too, that way if he's too hot he can go to the cool side and still feel safe and snug in a hide. If you've already got the tank and screen, go get the calcium powder, 2 hides (make sure one if a humid hide) and an undertank heater. That's the basics and you can grow from there. The humid hide can be something as simple as a clean margarine container, a small rubbermaid box, or one of those gladware containers. Just cut a gecko sized hole in the side and line it with damp papertowels. Then, just spray it everyday!
Love all, Trust few, Harm none