Yes i do have a thermostat to control the heat... And i have 3 digital thermostat i have 1 on the cool side 1 under the warm hide and i have one to measure the ambient temp and also a digital one for the humidity......

What i forgot to add is for the Heating Lamp i have two branches that go up under it and i guess when he wants to get warm sometimes i will see him basking under the lamp but he was using the warm hide till i added these branches in the tank so maybe that might be the problem... But he is eating every week for me like a champ...