Message me for custom orders. Sterilized in pc for 2hrs at 15psi 40lbs (x9 5lb unicorn bags) bulk coco coir/ vermiculite/ gypsum substrate for your monotubs. Coco coir is naturally resistant to contaminants and ideal for proper hydration. This cvg mix is one of the best options for a mush medium. This item is made of coco coir and vermiculite, gypsum.