The temps in the room run between 85-90. I don't have a UTH on him. The guy I got him from had this guy in his dads business, a local feed store, the snakes whole life without any UTH. I can go and get some mice from him anytime, just been offering rats though. I will try that tomorrow on feeding day. He hasn't lost any weight that I can notice. Hes really fast so I haven't weighed him. I know that's a poor excuse, but I haven't. He does however lay in his water ALOT!!!!! He seems to always be soaking in it. Could it be too hot in there for him?