The best substrate for any bioactive enclosure. Everything you need to to keep your reptiles, and your cleanup crews happy. Complete substrate with all the components required in a bioactive terrarium. Comes premixed with coconut coir, coconut chip, sphagnum moss, peat moss, organic soil, leaf debris, and added calcium to provide your isopods and springtails the nutrients they need to thrive and flourish. Just hydrate with water. 2 LB bag. Price includes shipping.