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These elements form the foundation of the reef environment and they include the three major elements: calcium, magnesium and bi-carbonates. These three ‘foundation elements’ have a major effect on the water chemistry (pH stability, alkalinity, seawater ionic strength) and on many of the coral’s biological processes (skeleton formation, ion- exchange, photosynthesis). Unlike the natural reef environment, where there is an immense reservoir of the foundation elements, the reef aquarium has limited resources that are quickly depleted by the aquarium inhabitants. Therefore, in order to enable sustainable coral growth it is necessary to maintain higher than natural levels of the foundation elements. Original research carried out in Red Sea’s laboratory has shown that in a closed system (an aquarium) a specific ratio between the foundation elements of calcium, magnesium and carbonates (alkalinity) is necessary for coral vitality and the formation of a robust aragonite coral skeleton. This ratio must be maintained especially when increasing the levels of the foundation elements above the natural sea levels.
Calcium levesl in natural seawater at 35ppt is approximately 400 ppm. The Coral Pro formula provides elevated levels of calcium at the “lower than natural” salinities preferred in reef aquariums. Table shows Calcium levels of Coral Pro mixed in RO water at 24°C 75°F and salinity. s.g. Salinity Calcium Qty of Salt 1.021 30.6 ppt 420 ppm 33.4 g/l 1.4 lb/5 US gal 1.023 32.8 ppt 450 ppm 35.8 g/l1.5 lb/5 US gal 1.025 35.0 ppt 480 ppm 38.2 g/l1.6 lb/5 US gal.
20KG Bag – Water volume: 600 liters (175 gal.)