Our best-selling, commercial, 2-part, hydroponic plant nutrient offers peak performances at every stage from seed to harvest! Produces vigorous, healthy plants, crop after crop. One 2- part (A&B) formulafor the growth stage and one 2-part (A&B) for flowering. Excellent solubility and pH buffering ensure optimum availability of all nutrient elements. Manufactured using laboratory-grade mineral elements and pure osmotic water ensuring top-quality and consistent results!