Hydro Crunch coir based soilless growing media is the ideal blend for hydroponic gardening, for use with drain-to-waste hydroponics, as well as a great alternative to potting soil and other traditional growing medias. Coconut coir is 100% natural, made from the fiber of coconut husks and is an alternative to peat based medias. Designed by hydroponics experts to provide the optimal aeration and water retention needed for a successful Hydro garden. Our mix blend of coco coir and perlite 70/30 incorporates 70% of the finest coco pith and fiber blend as well as 30% perlite for better aeration and drainage. This unique blend enhances drainage capabilities providing a buffer to protect your crop from over-feeding and over watering and it can be used to grow a variety of plant types especially food crops.