Red sea coral colours c is an iron and complementary trace complex supplement that promotes the green colours in coralsr reef colours c light metalsr promotes colour greenr contains iron manganese chrome cupper nickel aluminium zinc and cobaltseperated from other elements to prevent chemical interactionsr red sea research has shown a direct relaitonship betweek calcium uptake and the 31 individual elements of the reef colour supplements can also be used as part of the stage 4