HabiStat Jungle Bio Substrate is a natural eco system designed to provide perfect conditions for a thriving plant terrarium. Added activated carbon works to balance out the Ph levels. A specially selected variety of natural ingredients, packed with nutrients to aid plant growth, we recommend using in conjunction with a base layer of Amazon Clay Balls to provide drainage and a natural filtration system. Our range of HabiStat substrates are all now packed in 100% recyclable and biodegradable paper bags. Available in a 10L Litre bag. Directions for use: Add live isopods like springtails, worms, millipedes and woodlice to break down organic waste and create a natural biotope.