Thanks for the help everyone. I removed the heat mat and he seems happier. He was sat really upright waiting for food. Tomorrow ill give him something big. I have asked this before but never got a real answer. What would be the healthiest option as a once a month feeder, rats, mice, chicken chicks. The store sells other things like gerbils and quails also but they're more expensive. I alo know that none of these are better than insect live foods but they save money for one week every month by filling him up. And also all of yhese are pre killed because of some law over here which makes it illegal to feed live vertebrates to something.