Jack's 321 Hydroponic Nutrients Fertilizer Plant Food - 2 lb Kit

- Jacks 5-12-26 Hydro formula was designed as a base foundation for hydroponic growing. Jack’s has proven ability to remain in true solution over long periods of time with excellent nutrient availability to plants. - Accurately weighed packets (+/- 2% by weight) for making 150 gallons of Jack's 321 hydroponic nutrient solution (dependent on the desired strength). - The kit includes individually bagged components: 16 oz. of Jacks Hydroponic 5-12-26 (Part A), 10.67 oz. solution grade Calcium Nitrate 15-0-0 (Part B), and 5.33 oz. solution grade Magnesium Sulfate (Epsom Salt).