Thanks for such a detailed reply. I actually asked the reptile person on Monday when I was buying the snake and she told me mouse fuzzies. I went earlier today to pick them up, and I asked a different person and they also said that 5g fuzzies (I physically showed them the bag I was buying and they said that would be okay) would be enough for a baby ball python. Would it be okay to feed the snake maybe 2 5g mice in 1 sitting? I don't want to let $6 worth of frozen rodents go to waste.
I guess I'll add that I have a 85*F hotspot with a hide (under the tank heater) and a cool hide (ambient temperature of the cage right now is about 78-80*F). He spends most of his time going back and forth between his cool hide and warm hide, which I've read is typical so I would assume he's comfortable in his tank.