SUPERIOR GROWTH: Our compressed dehydrated coco coir was developed for superior mycelial growth. Once hydrated, each brick provides optimal pH, moisture retention, even gas exchange, and key trace minerals to your mushroom grow. The first coco coir researched and selected specifically for its mushroom cultivation qualities, Myco Coco can be used as both a casing layer and substrate additive. (It is also a world-class substrate for growing plants indoors or outdoors!) HIGH STANDARDS: Triple-washed and buffered to adjust pH and nutrient levels, Myco Coco creates the ideal air-to-water ratio, making it ideal for cultivating gourmet and medicinal mushrooms. RHP certified to guarantee the highest substrate standards in the industry, it is naturally free of pests and weed seeds. MADE FROM COCONUT: Myco Coco is made from coconut husks, is biodegradable, and is a 100% renewable resource. It also contains traces of Magnesium and Calcium that contribute to the overall growth of mushrooms. Note: 1 brick makes approximately 5-6 pounds of coco coir. Our compressed dehydrated coco coir was developed for superior mycelial growth. Once hydrated, each brick provides optimal pH, moisture retention, even gas exchange, and key trace minerals to your mushroom grow. The first coco coir researched and selected specifically for its mushroom cultivation qualities, Myco Coco can be used as both a casing layer and substrate additive. (It is also a world-class substrate for growing plants indoors or outdoors!) Note: 1 brick makes approximately 5-6 pounds of coco coir