Product Description
Create a thriving and healthy natural habitat for your reptiles and amphibians with the Exo Terra BioDrain Terrarium Substrate. Designed specifically for tropical terrariums, vivariums, and paludariums, this inorganic volcanic base material forms an essential water drainage layer at the bottom of the enclosure. Made from durable, non-decomposable volcanic rock, it will not rot, decay, or break down over time, ensuring long-lasting performance in high-humidity environments. The porous structure of the material functions as a natural biological filtration system, housing beneficial nitrifying bacteria that help break down biological waste and purify circulating water. By elevating the soil above standing water, this substrate provides vital root aeration for live terrarium plants and prevents anaerobic rot and soil waterlogging. Ideal for hobbyists setting up bioactive enclosures, this 4.4-pound package offers a reliable foundation to maintain a clean, balanced, and sustainable ecosystem for your pets.