Growing marijuana using coir substrate and coco peat is a great way to produce high-quality medical marijuana for new and experienced growers alike. RIOCOCO PCM grow bag is made of a special blend of coco peat and coir substrate that are completely natural material. The chosen raw materials are five times washed and blended without fine dust particles to make grow slabs for the needed sizes. Our coco peat and coir substrate has very high air fill porosity, moderate water holding capacity and balanced pH with very low EC and Sodium content. Buy 100% organic, non-toxic, renewable and biodegradable coir substrate and coco peat from Riococo/Ceyhinz Link.