it depends on how many leos you want to keep.... what i bought was a couple shelves from walmart for 20 bucks.. it holds three bucket things, then I bought the same k inda shelf but holds more buckets at a smaller size (for juvies) for 15 bucks, then I spent about 40 bucks for heat tape and dimmers!! If I wanted to - with my rack system - I could hold roughly 50 juvies and 6-10 adults~!