Components Strong is a concentrated set of trace elements designed specifically for reef aquariums using the Balling Method. This product includes four 250 mL bottles, each containing unique microelements necessary to maintain the perfect balance in coral reef environments. When used alongside Aquaforest's Calcium, Magnesium, KH Buffer, and Reef Mineral Salt, Components Strong ensures that all essential trace elements are present in optimal amounts for healthy growth of various marine life such as soft corals, SPS corals, LPS corals, and clams.