Marine Power Easy Magnesium


Marine Power Easy Magnesium has been designed to raise the level of magnesium in the marine aquarium and it is recommended for smaller tanks occupied mainly by soft corals.


Magnesium is quantitatively the third, after sodium and chloride, a component of seawater. Its presence in salt water supports the availability of calcium and strontium for the calcification of corals (SPS/LPS) and many other marine organisms, such as snails or mussels. Magnesium is also an important bio-element for marine organisms because it participates in many metabolic processes.

The level of magnesium in coral seas is about 1280 – 1320 mg/l. In the majority of marine aquariums, the level of magnesium should be maintained at a stable and similar range. Small deviations of 10 – 15% are not dangerous for the invertebrates in the aquarium, although they can stress the corals.

In the properly functioning marine aquarium, the level of magnesium is constantly decreasing, mainly due to the calcification process. Although magnesium is not the main component of the coral skeleton, its ions are often built in the skeleton and for some species of corals, magnesium accounts for over 3% of the skeleton structure. In addition, magnesium prevents excessive precipitation of calcium carbonate. The decrease of the magnesium should be supplemented daily with Marine Power Easy Magnesium. Magnesium consumption depends on many factors, such as water temperature, lighting, type of stock in the aquarium and others, and its level requires regular checking.

If mainly soft corals are kept in the tank, the daily Mg consumption may be small and may vary on a daily basis, therefore we recommend calculating the average daily Mg consumption. To determine that, two measurements of Mg should be made with an interval of 4 – 5 days. It is important that both tests are made at about the same time of the day and that water changes (if done every week) are made at least 24 hours before or after the tests. This way, they will not affect the results. In a healthy aquarium, the first Mg score should be higher than the second. Then we subtract the second result from the first, and divide the obtained value by the number of days (minus 1) between the two tests.

Please remember that Mg consumption will change with the growth of corals and other invertebrates in the aquarium. Therefore, this process should be repeated every couple of weeks.

The dosage of Marine Power Easy Magnesium depends on the daily magnesium consumption. One full cap of the liquid will increase the level of magnesium by about 20 mg/l in 100 l of water.

Additional information


500 ml


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