AF Component 3 in 1 (1000ml) by Aquaforest is a liquid solution designed to simplify the supplementation process for reef aquariums. It combines three essential elements—calcium, magnesium, and carbonate hardness (KH)—into one formula, making it easier for aquarium owners to maintain a balanced and healthy environment for their corals and marine life. These elements are critical for the growth and development of corals, especially in systems with a high demand for calcium and alkalinity, such as SPS (small-polyp stony) reef tanks.