i gotta a beardy maybe 4 months old, and i wanna put her in a 75 gallon soon. is it really a bad thing to use play sand or a fine sand, or do i really need to but the stuff in the store thats expensive when you gotta buy like 4 bags to cover the bottom. i mean they dont have that stuff in the wild, so whats so bad about it in captivity? thanx Joe

