My husband and I recently added a rosy boa to our family. And since our apartment is much cooler than his previous home, we figured and under the tank heating glass would work, but it heats up the glass on the bottoms too much. My husband thought maybe putting a layer of sand on the bottom would help, and since he lived with snake for a while at his aunts house, I figured he knew what we couldn't and couldn't use as substrate. So he went out and bought some sand and layered the bottom of Chad's tank with it. It starts off great, Chad seemed to enjoy it. But a week later I noticed he had a couple of dry patches on his belly. I immediately took the sand out and the aspen shaving that were on top and replaced it with fresh aspen shavings. He doesn't act like he's in pain when he's being handled and his dry spots are touched, but is they're any way I can help him regain the oils that he lost?