Preis Mineral-Komplex S is a mineral concentrate for sensitive invertebrates, soft and hard coral, and calciferious algae for the restoration of trace elements and minerals in seawater aquariums. For invertebrates and corals. Reef-forming hard coral and red calciferous algae receive strontium, selenium and calcium, while iodine assures a deep green coloring of all Caulerpa species and prevents the formation of goitres in fish. Iodine usually dissipates after about 8 days in aquarium water and must absolutely be replenished on a regular basis. The coloring of Zooxanthellae, soft and stone coral is considerably favorized by the iron supplements contained in Mineral-Komplex S.Dosage: 20 ml per 100 l of water once weekly.