It's repti-sand. Recommended by the team at hollybush. And all the places I have been I have seen them on calci-sand, play sand, etc, etc. I'm sorry if some people disagree with my choice of substrate, but it's staying that way. I haven't had any problems with it at all. It looks a lot better, and it's more natural for the leo's.

__________________
0.2.0 Leo's (Yoshii & Egao)
0.0.3 Terrapins
0.0.1 Turtle
One super hot mrs.