Reef Advantage Magnesium is a high-concentration (80,000 ppm) magnesium supplement designed to replenish depleted levels of magnesium in saltwater aquariums. It helps maintain optimal pH stability and supports the overall health of reef inhabitants by ensuring that magnesium remains within natural seawater parameters. This product contains chloride and sulfate salts in an optimized blend, minimizing any disruption to ionic ratios found in natural sea water, which is crucial for a balanced marine environment.