In addition to the Red Sea Test Kits, Red Sea also makes Reef Foundation, Coral Coloration, Reef Energy and Coralline Gro. The Red Sea Reef Foundation is a 2 Part System which contains Calcium, Alkalinity and Magnesium supplements. It comes in easy to use 500 mL bottles of liquid supplement which are great for nano or smaller tanks. If you have a larger tank, choose the economical 1 kg buckets of dry material to be mixed with your own pure water at home. The Red Sea Coral Coloration comes in 4 different trace element concentrates to enhance various colors. Red Sea Energy A and B work together to provide all the energy, amino acids and vitamins essential for corals' growth and coloration.