Thanks guys, I'll be weighing him when I can (dont have anything to weigh atm) and I'll work on the thermometers. I feed them f/t. Honestly the previous owners were really under-feeding them. I think they were feeding a large mouse per week. I fed the large python 2 adult mice every 2 weeks, and he happily takes them.. its just the small guy is being stubborn. But I'm going to slowly switch them over to a larger rodent. (Rats)