Thanks for the advice. I don't know how old he is, I found him at work about a year and a half ago and he was about the same size then as he is now. I won't feed him the large mice again, it was some sort of mistake from the Gourmet Rodent company I think, they packaged mice a size bigger than they should have. Just went to their website and I had bought a three pack of fuzzy mouse, but it was definitely the hopper mouse size packaged in it. He seemed to be able to take it OK and I was able to feed him one mouse a week instead of three, but from now on I will only feed him pinkies and fish if he starts eating again. I don't know where to get nightcrawlers around here, if anyone lives in Manhattan and knows a place the help would be appreciated. Hopefully he eats soon.