My tank is glass, but I keep a towel over it, damp, to keep the humidity. The humidity is around 60 and the temp 75-80. I keep a black blanket over the cage, But YES I let air in lol. He has two hides, fake vines, a branch, and Aspen shavings spread around, night and day lights, and a heat pad. I keep heavy objects on top of the tank to keep him from getting out and when I was checking him out today he really looks pretty normal, just a really light pink belly. I suppose I will try to feed him Tuesday of next week or longer if you think I should wait. Thanks!!!!