Seachem Reef Advantage Magnesium

Reef Advantage Magnesium™ is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the ionic ratios found in natural sea water.

Sizes: 300 g, 600 g, 1.2 kg, 2.2 kg, 4 kg, 20 kg