Quote Originally Posted by SkullyB View Post
the pet store i went to said that feeding 2 pinkies would be sufficient
Maybe, but it would be better and more efficient to simply feed one hopper

Also, a 20 gallon tank is a little too big for a baby 100 gram ball python. I understand that you probably wanted to have something she could grow into, but for now she might be a little stressed in such a big space. I would cover the back and the sides of the tank with black construction paper or cardboard and get some fake plastic vines to fill it up a little and help make her feel more secure. Your temps and everything else sound good though, and it's good that you're going to be getting a digital thermometer