Xtreme Gardening MYKOS ROOT PAKS Great For HydroMYKOS Root Paks are conveniently packaged in 10 gram "Biodegradable Paks" for both soil and hydroponic applications. Simply place the pak at the base of the plant and the developing roots will grow through the biodegradable paper membrane and become rapidly inoculated with a single species of arbuscular mycorrhizal fungi. MYKOS mycorrhizae contain only Rhizophagus intraradices, formally known as Glomus intraradices. There are no other microbes such as