Red sea reef foundation c is a magnesium complex for balanced formation of coral skeletonsreef colours c light metalspromotes colour greencontains iron manganese chrome cupper nickel aluminium zinc and cobaltseperated from other elements to prevent chemical interactionscalcium magnesium strontium and carbonate are the basic foundation elements of coral skeletons all of these elements need to be available in balanced proportions for coral health and growthreef foundation c cont