Some corals and calcareous algae store magnesium in their skeletons in addition to calcium and strontium. Biochemically, it is 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 in seawater.

Tropic Marin® Bio-Magnesium supplies magnesium and carbon dioxide in a form that is optimally biologically available. This prevents magnesium deficiency in seawater and restores the natural concentration ratio between the alkaline earth metals. These are the basic conditions for a healthy coral reef in the aquarium.

• For a biologically ideal magnesium supply in crystal form in the reef aquarium
• Provides magnesium for strong skeletal growth of corals and calcareous algae
• Provides carbon dioxide for the zooxanthellae to support photosynthesis and the formation of calcareous skeletons
• The natural ionic composition and pH value of the water are not changed
• Without unnatural by-products
• Free from phosphates and nitrates
• Accurate dosage and easy application
  
  
  

Natural seawater has an average magnesium content of 1,280–1,300 mg/l. First, measure the magnesium concentration of your aquarium water and estimate the water volume of your aquarium, taking into account the decoration (rocks, etc.).

Liquid

Adding 50 ml of Tropic Marin® Bio-Magnesium Liquid per 100 l increases the magnesium content by 25 mg/l.
Recommended maximum dosage: 50 ml per 100 l aquarium water per day.

Tropic Marin® Bio-Magnesium Liquid can be added to the aquarium water manually or using a dosing pump.
To refill the bottle, 450g of Tropic Marin® Bio-Magnesium in crystal form can be added to 1L of reverse osmosis water to make a solution

Concentrations above 1,600 mg/l magnesium should be avoided, as various organisms can react negatively to extremely high magnesium levels.

Over time, the density of water can increase slightly. Check the density regularly. In addition to the magnesium concentration, the calcium content should also be monitored.