Alright, I don't know where else to put this because there is no substrate section, but since impaction etc. leads to health problems, I'm putting this under "health". Ok. My two bearded dragons are getting bigger and I think can move on from paper towels to sand substrate. I know that the care sheets recommend "playsand" and to avoid "Silica sand". However, the "Playsand" available in my country are the same sand used for construction (i.e. sharp edges). Therefore, I have to look for an alternative. I want something for a display terrarium that is more decorative than newspaper or paper towel, but at the same time quite practical. I heard from leopard gecko owners than Oolite sand is almost completely round is shape, very fine, and is a good choice for lizard substrate. They are supposedly very low impaction risk, so I have been told. Is this information correct? Is Ooilite sand ok to use? They are meant for substrate in fish tanks. Also, if I were to use sand, will 1) crickets, 2) roaches, and 3) worms respectively all burrow into the sand and never get eaten? I have also heard of people using "grass pellets" with great success for desert terrariums. These are the pellets that are used to feed small mammals such as rabbits. They get moldy in humid conditions but since the beardies need low humidity it should be perfect. I do know for a fact that worms burrow right into them though.