Join the magical world of mycology with the All-in-one bag a great growing medium for both wood loving, and manure loving fungi.  This bag has the grains to inoculate with the spore of your choice through the self healing injection port. The rest of the substrate is a mix of Coconut Coir, Vermiculite, and Gypsum.  Available in two sizes, a 2 lb block, or a 5 lb. block