He hasn't eaten since the 15th of last month. I usually just leave f/t rat in his tub and by the next day it's gone but that hasn't been happening lately. I just tried heating it up with a blow dryer, and nothing. Plus, he just shed so he should be extra hungry. I want to try every method there is, because I don't want to have to force feed him.

Could it be that summer is ending soon and he is starting to go off feed for fall and winter?