Reptile Earth's BIO MIX is a bioactive soil mix with a formulation that has led to great success in the propagation and keeping of both common and rare Isopods, Arthropods, Reptiles, and Plants. It is the perfect substrate for your reptile or amphibian's naturalistic habitat. These organic ingredients contain everything you need to create a thriving ecosystem for your pets and plants. Our proprietary blend of organic-matter based ingredients contains similar base components to the well-known ABG (Australian Blacksoil and Greensand) blend. We've added a few extra critical organic compounds to jumpstart the positive-bioactive nature of our mix, providing greater beneficial nutrients for your pet.