You'd be surprised by the size of prey carpets can take down. I know I was and I'm pretty cautious about these things. My JCP was 31g at 8 weeks and he would eat a 9g rat fuzzy. I bought a bunch of mice fuzzys at first but those were like tic-tacs to him. After 2-3 feedings of multiple mice fuzzys I offered him a rat fuzzy and he smashed it with no issues. My coastal was barely 100g when I got him as a yearling in Sept. 2015. I started out feeding him rat fuzzys for his first two feedings. The breeder told he he could undoubtedly handle a jumbo mouse. I thought NO WAY but I tried it and he took it down with ease. I would never suggest overfeeding any animal. I'm just saying don't underestimate these guys.