What kind do you use for savs? I was in the Benjamin Moore and saw whats in the pictures below. Thing is i dont know if its safe to use, so is it? I use eco earth now, but that stuff can really get expensive trying to fill a monster cage. So i'm going with the traditional cheap sand/soil mix, so is it safe to use?
http://img109.imageshack.us/img109/3225/92332571.jpg
http://img148.imageshack.us/img148/9854/70743580.jpg