Earth Juice Catalyst is a natural-organic molasses-kelp based liquid nutrient that aids plant growth and production. This product is very versatile and may be used solely or in conjunction with all soil and hydroponic fertilizers to obtain optimum results. More specifically, Juice Catalyst is designed to be used as part of a complete fertilization program through all stages of plant development. Also functions as an excellent "finishing" formula for determinate plants. This is a great overall product for horticulture hobbyists and professionals in indoor/outdoor plants, soil and hydroponics. 5 Gallon Container.