if you're gonna set-up a tank/vivarium, here's a helpful stickie thread on how to set one up and a lsit of stuff u need: http://ball-pythons.net/forums/showt...-With-Pictures!
Substrate is based on preference. u just have to do u make sure temps and humidity is appropriate for whatever u decide to use. want a natural looking set-up? if so, get shredded aspen, mulch or coco fiber. if basic, paper towel or newspaper will do.
tank size for an adult? a 40 gallon tank minimum. u can go larger if u plan to add alotta hides and decorations.
good luck, have fun, post pix.![]()