What brand of UVB light and model. This information is printed on the bulb. also is it a tube, compact, coil, Mercury Vapor? How often and how much are you feeding him? What size insects? Are you Gut loading them? What type of calcium and vitamins are you giving and how often? What are the tank temps for basking and the cool end? How do you hydrate him and how often? Is he alone or with other reptiles? Is the tank in a noisy area or quiet?