HabiStat Jungle Bio Substrate is a natural ecological substrate designed to provide perfect conditions for a thriving planted herbarium. The added activated carbon helps to balance Ph levels. A specially selected variety of natural ingredients, packed with nutrients to enhance plant growth, we recommend using in conjunction with a base layer of Amazon Clay Balls to provide drainage and a natural filtration system. Directions for use: add live isopods like springtails, worms, millipedes and woodlice to break down organic waste and create a natural habitat.