Growing cannabis in coconut coir substrate is a great way to control several variables such as nutrients, water, & pH. RIOCOCO MMJ’s 100% organic & biodegradable coco coir substrate is one of the best hydroponic nutrients for marijuanas. With more than 17 years of experience, we have been manufacturing and offering coco coir products at the lowest price. Our top-quality cannabis growing media gives faster, bigger, strong & healthy roots. It has also good water retaining capacity and air-filled porosity.