... temperature and I cant seem to figure it out. Its a 40 gallon tank. The basking light is a Zoo Med 100W and the UVB is a Reptisun 10.0. Also, he is refusing to eat and is hiding in the corner of tank under a towel. He has been there for a while and wont do nothing. Is that normal? I should also point out that my room is in the basement and its the coldest part of the house. Its started to get cold out now that winter is about here and the tank is placed next to a window that lets cold air in. Should I move the tank or is that not a factor? Any help will be greatly appreciated