I saw a couple people here using sand as subtrate and I just wanted to remind them that sand is a HUGE NO. For any reptiles but especially beardies as they use their toung to taste everything as they go about there day. Sand conjests their whole insides and will kill them. I have had personal experience with sand fatalities and the vet bills aren't pretty. They can't digest or pass sand so please use paper towel or tiles to line the terrarium.