Although only a minor trace element in seawater, Strontium is essential to the building of calcareous skeletons, shells of corals, mollusks and many other invertebrates. Strontium is only one of the elements constantly extracted from seawater by reef building organisms and should therefore be added regularly together with calcium, molybdenum & trace elements.
To maintain and stimulate coral growth, use regularly in combination with weekly 10% water changes (i.e. using Red Sea Salt).
