By the way, my BP is about the same size and I feed him F/T adult mice from petco. By pinkies do you mean the fuzzies (The roden garment stuff from petco)? If so, then switch one size bigger. What I did was I bought 4-5 adult mice and weighed them, and for the first time gave him the smallest one so that he can get used to it. I thought it might have been too big for him, and I've read that BPs would refuse to eat if the prey is too big, but upon showing him the F/T he struck at it so fast that I didn't even have time to flinch.