Korallen Zucht’s Coral System consists of vital elements and compounds for the enhancement of coloration,health and improved biology within the corals of your Marine or Reef Aquarium.Coral System is a separate product line to cultivate and breed corals successfully, and allows the aquarist to maintain and enhance coloration with good growth rates and beautiful polyp expansion. Korallen Zucht’s Coral System has been developed for aquarists who want to cover the necessary elemental additions within their Aquarium.