Very nice, but wood bark substrates attract mites, and they can be a pain too. A snake infested with mites is miserable as these bloodsuckers make him sick. I use Reptile Relief for mites. It isn't a poison, and yet kills lice, ticks, mites, and fleas on contact. Avoid using the product on the eye scales, or within six hours after a shed. Calci-sand is sold at Petco, and other pet stores and outlets. It comes in various background colors too. Black, white, green, gray, etc. I like the desert king against the black background. Her yellow stands out like a beacon. Purty. So beat feet down to Petco, and see what you find.