It’s widely known that magnesium plays a very important role in marine aquariums - brands such as D-D even add extra magnesium to their H2Ocean Pro+ Salt as they feel the slightly elevated level is essential.
Tropic Marin Bio Magnesium is a magnesium supplement essential for reef building coralline algae as calcium. Magnesium is one of the core constituents of sea water so if the level is not correct, it will only cause you trouble for your fish and corals. So why does magnesium deplete so quickly? Evaporation and calcareous animals are the two main culprits. Ideal levels are to remain between 1280-1300ppm. Simple top ups with this Magnesium supplement ensure everything remains stable but if you find after testing your magnesium levels are low, don’t suddenly increase your levels dramatically. Whilst it’s important to correct the level, you must do it slowly to avoid shocking the system. At the same time keep the level below 1600 ppm.
Other benefits of this product:
- helps accelerate skeleton growth of corals
- helps maintain natural ionic concentrations
- contains no phosphates or nitrates

For a range of other coral health water supplements please visit our page which can be found here.




