I had issues with my temperature and humidity. I put foil (shiny side down) completely over the tank. I use a ceramic bulb for heating on one side, and a single opening hide for the warm side, a half log for the cool. I also covered the tank with a towel, over the foil, for extra heat. On the cool side I noted that the inside of her hide was a bit too cool, so I put a UTH with a thermostat on the side of the tank near the rear of the opening. It's worked amazing for me