The element magnesium in the reef aquarium:
Magnesium is one of the key components of seawater and – similar to calcium (hw-CalciumMarin®) – is needed by almost all hermatypic (reef-building) organisms. In photosynthesis, the electrons have to be energized in the magnesium center of chlorophylls; magnesium is required to grow a sturdy skeleton structure. The photosynthesis transformation process continuously lowers the magnesium content in reef-aquariums until noticeable and severe deficiency symptoms occur. This is why magnesium has to be supplied to seawater aquariums. Simple magnesium compounds are only a stopgap measure and quickly result in a complete shift of the ion balance in seawater.
hw-MagnesiumMarin® ensures biologically highly utilizable magnesium enriches aquarium water naturally without changing theion balance or adding undesired substances. Only the magnesium content is raised, which creates ideal conditions for a successful seawater aquarium. Magnesium content in the reef zones of the world amounts to 1250 to 1320 mg/l on average. Modern seawater aquarium techniques have successfully used amounts up to 1450 mg/l with very positive results. Values above 1600 mg/l, however, should be avoided since some maritime organisms may react negatively to such amounts of magnesium.
Before adding hw-MagnesiumMarin®, use a commonly available magnesium test to determine the current magnesium level of the aquarium water. Try to estimate the water volume as accurately as possible and include filter volume and aquarium decoration in your calculation. One level measuring spoon (included with product) amounts to approx. 10 g of hw-MagnesiumMarin® and increases the magnesium content of 100 liters of aquarium water by approx. 12 mg/l. The magnesium concentration in seawater should be increased slowly – do not exceed the
max. daily dose of 3 to 4 measuring scoops (30-40g).
Fill the measuring scoop, level it, and slowly scatter the additive across the water surface of the aquarium while keeping the water in motion. Please make sure that larger crystals do not come in direct contact with corals or remain on the tissue. Increasing the magnesium concentration higher than 1600 mg/l is not recommended since some reef organisms may react negatively to such high magnesium concentrations. After several months of dosing, the aquarium water density may increase. Please check the water density regularly using an hw densimeter.