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----- magnesium plays an important role in biological processes, participating in the skeletal structure of hard corals and chemically providing buffer capacity and preventing excessive calcium and bicarbonate precipitation in the water.
Constant monitoring of calcium, magnesium and carbonate hardness concentrations is very important in the marine aquarium.
The concentration of magnesium in natural seawater can be 1260-1500 mg.
L (ppm).
The test is sufficient for 55-60 determinations of magnesium concentration in the aquarium, within the range indicated in the table.