I guess he's just not hungry?

[Teal]

I am trying to sort out how to get his hot side a bit hotter... right now, it peaks at about 89F. His cage is super frustrating... it refuses to get any warmer in there, even though there are TWO heat bulbs and even if the room temperature is higher (for instance, it was 91F in the room when I got home from work, and yet only 78 in his cage??). So I am guessing it's a temperature issue more than anything? His previous owner didn't mention him going off feed during breeding season... but I guess maybe that could be considered a "normal" mode of behaviour.