FoxFarm Cha Ching is engineered to maximize the final phase of a plant's production. Made to use after the fruit has set, Cha Ching is packed with just the right combination of nutrients to make fruit and flowers drip with flavor and ooze with fragrance. Cha Ching is a high-phosphorous fertilizer that won't leave a salty residue or buildup in your hydroponic systems or containerized soil plantings. It contains all the essential elements like calcium, magnesium, boron, manganese, sulfur, molybdenum, iron, copper and zinc to support solid fruit on compact, stocky plants. Designed to work with FoxFarms other plant foods and fertilizers.