Grow IT expanded clay, Coconut Husk Chips, Charcoal. Very popular general purpose orchid mix. A mix of medium Hydrocorn and coconut husk chips with generous portion of charcoal. Gold Label Hydrocorn, Hydroton and Aliflor are all expanded clay pellets. Grow IT is the best quality expanded clay, size and texture. Hydroton, and Aliflor are out of business