I started my '07 hatchlings on fuzzy mice. I generally feed rats, but I prefer fuzzy mice to pinkie rats which are a similar size. A furred prey item just seems more substantial to me. It might depend on what's easier for you to get in your area, what you go with. If your snake is an '07 and getting a bit big for one fuzzy mouse, two will do; ask the seller what/how many the snake eats. It could be ready to graduate to rat fuzzies at that time.