The growing medium must contain the good nutrients which will be your crops only form of energy. Although mushroom do not produce carbohydrates or sugars, they do need them for development. The best way to provide nutrients is by mixing in unbleached flour with a media of perlite and vermiculite. The vermiculite perlite must be roughly 50-50.
Other media that have proven effective for hydroponic mushroom are expanded clay aggregate. A suggested growing medium to use for mushrooms is vermiculite. As a source of nutrients, vermiculite is mixed with a small amount of water and brown rice flour and formed into a sterilized cake. A mushroom hydroponics system usually consists of a small tank filled with expanded clay aggregate pebbles, humidity gauge, a water heater, light and air pump with an air stone attachment.
