Exo Terra Sub Stratum Bioactive Volcanic Substrate For Reptile Terrariums Eliminates Odor And Controls Moisture Four Point Four Pounds

The Exo Terra Sub Stratum provides a natural, thriving foundation for bioactive planted terrariums. Sourced from the mineral-rich foothills of Japan's Aso Volcano, this premium volcanic soil is specifically designed for reptiles, amphibians, and burrowing animals who thrive in a living ecosystem. Composed of natural andesitic and rhyolitic tephra, it is packed with essential minerals that promote robust root development for live terrarium plants. The unique porous and lightweight structure of this substrate offers superb drainage and aeration capabilities, which effectively prevents waterlogging and maintains optimal humidity levels. This creates an ideal environment for beneficial nitrifying bacteria to colonize. These live organisms actively decompose organic waste and eliminate harmful ammonia and unpleasant odors, keeping your reptile habitat fresh and healthy. Whether you are setting up a tropical or desert vivarium, this versatile volcanic ash can be used as a standalone substrate, a drainage layer, or mixed with other organic media to foster a clean, self-sustaining ecosystem for your pets.