EBayBesides calcium and strontium, some coral and coralline red algae also store magnesium in their skeleton. It is biochemically directly involved in the photosynthesis of algae, i. E. The conversion of carbon dioxide and light into organic compounds. Magnesium is therefore one of the most important minerals of seawater. ® Bio-Magnesium provides magnesium and carbon dioxide in a biologically optimally usable form, preventing magnesium deficiency in seawater and restoring the natural concentration ratio of the alkaline earth metals. These are basic requirements for a healthy coral reef in the aquarium. For biologically ideal magnesium supply in crystalline form in the reef aquarium Provides magnesium for strong skeletal growth of coral and coralline red algae Provides carbon dioxide for the zooxanthellae to support photosynthesis and calcification The natural ionic composition and the pH of the water are not changed Without unnatural by-products Without phosphates and nitrates Exact dosing and easy application Dosage: Natural seawater has an average magnesium content of 1280–1300 mg/l. First, measure the magnesium concentration of your aquarium water and estimate the water volume of your tank system, taking into account the decoration (stones, etc.). The addition of one measuring spoon of ® Bio-Magnesium increases the magnesium content by about 10 mg/l per 100 l (26 gallons) of water. Maximum recommended dose: 2 measuring spoons per 100 litres (26 gallons) of aquarium system water volume per day. To use, fill the dosing spoon with ® Bio-Magnesium and level using scraper. Distribute the contents of the measuring spoon well by stirring at the surface of the water. Make sure that no larger undissolved ® Bio-Magnesium crystals come into direct contact with the corals. Add the next spoon when the previous one has dissolved.