82 - 84 on one side, 92 - 94 on the other ... 24 hours a day. Temps that are too low could lead to a variety of health problems including constipation.

Fuzzies are a little small for a ball python. I feed hatchlings fuzzy mice for about their first two meals and then they are on to small adult mice ... unless your snake is less than 2 months old, I'd up the prey size.

-adam