Hello all, I just bought a large bag of fully organic, no chemicals added, nothing at all soil. In large letters on the front it said no chemicals or fertilizers, so I assumed it was all right. Unfortunately when I opened the bag the soil was mixed in with pumice. For those of you who don't know, pumice is very porous and fragile volcanic rock. They're the size of small pieces of aquarium gravel, does anyone know if this would be okay for the monitor? He is tunneling a lot, but would he eat it or something and choke? What are your thoughts? Thanks for the help.