The ingredients used in Farmer's Pride promotes and facilitates the growth of beneficial bacteria and fungi in your growing media. Farmer's Pride can be used in hydroponic systems, coco-coir, all soil-less mediums such as vermiculite and perlite, and in soil. Due to the organic nature of this product, there may be larger particles in the nutrient solution that may clog fine jets/pumps High grade, ultra-concentrated formula Proven results across the internet! See why everyone is raving about Blue Planet Nutrients!