Finally some good news! For nearly a month He constantly snubbed every F/T fuzzy and crawler rat that I offered him. He would display some modest interest in it, and then decide that F/T food is lame and then he wouldn't eat it. So today I decided to give in and get a fresh crawler from the pet store. I waved it in front of his face for maybe half of a second and he IMMEDIATELY pounces on the sucker. IDK what the Hell the difference was, since I always made sure that the F/T rats were nice and warm, but I'm not complaining. He crammed it down and now I'm going to let him relax for a few days.