Mykos Root Paks are great for hydroponic systems, such as deep water culture, aero and aquaponics. They grow big roots and keep the Mykos where they need to be and not clogging up your system and sprayers. Mykos works faster and inoculates stronger. May be used with any nutrient line. Easy to use pouches resemble the look of a candy bar. Simply tear open pouch and pour. A great point of purchase display. Attractive display box contains 60 x 100 gram pouches.