Keep coral and other invertebrates healthy without affecting ionic balance with Fluval Sea Magnesium Aquarium Water Conditioner. Proper magnesium levels are important to the growth of coral, coralline algae and other invertebrates. Fluval Sea Magnesium Aquarium Water Conditioner raises and maintains magnesium levels to help prevent calcium precipitation which can cloud water, coat aquarium walls and clog pumps. It contains high quality, ultra-pure magnesium chloride that is free of unwanted contaminates and does not contain gluconates, nitrates or phosphates so it won't affect your marine aquarium's ionic balance.
Concentrated, magnesium-boosting compound effectively elevates magnesium levels in your aquarium
Supports optimal pH and strong coral growth as well as helps prevent calcium precipitation which can cloud water, coat aquarium walls and clog pumps
Contains high quality and ultra pure magnesium chloride, free of unwanted contaminates
Does not contain gluconates, nitrates, or phosphates
Offsets ongoing depletion of magnesium caused by coral absorption
Add 5 mL per 75 L (20 US Gal.) once/week. Weekly dosage provides 5 mg/L of magnesium. Note that magnesium is essential in the maintenance of balance between calcium and alkalinity levels; it should be tested regularly and supplemented as required.