We use a 20 long ATM was $20 at petco on sale and just coevered it with a peice of Plexi with holes drilled in it keeps our temp and humidity great. As for buying at Petco do your research we got ours at petco and were able to contact the breeder and find out the lineage of our snake. The enclosure they were in was set up great heat and temps were great and the snakes were handled properly. How ever 12 miles up the street the other PETCO (the evil one) the snales were stuck in shed with 20% humidity the temp was a little low so I dont buy crap from that store and made a complaint. So I would be a good consumer and frequent or buy from a store that is taking care of the animals. Our Petco is a very nice store Clean with knowledgeable staff who care about the animals but I have seen and heard horro stories about other stores in the chain. BTW we got our snakle a wholesale 24.99 on sale so shop and get a healthy happy snakeand enjoy him once his personality comes out. We had to name our Peek A Boo he love to play that game
Robie