Exo Terra Plantation Soil Coconut Fiber Reptie and Amphibian Terrarium Substrate Loose is ideal for tropical terrariums. It increases humidity and encourages natural digging/burrowing behavior in reptiles and amphibians. This eco-friendly soil contains no added chemicals and can even be used to grow live plants, creating a realistic rainforest floor while helping to break down waste in the habitat. Available in Multiple Sizes