Pharmaceutical Grade Magnesium Sulfate Aquarium Supplement Reef Endurance Magnesium Sulfate is a pharmaceutical-based aquarium supplement that is a fine powder that mixes crystal clear with no unwanted impurities. In reef aquaria, maintaining a proper magnesium level of 1200-1350ppm helps achieve the essential balance of calcium and alkalinity in the aquarium by preventing excess calcium carbonate precipitation. For best results, use in conjunction with Reef Endurance Magnesium Chloride for a complete balance. Replenish and maintain Magnesium levels in a reef aquarium Resealable Packaging Mixes Clear No Residue Mixing Instructions: 1gal RO/DI + 2 Cups of Magnesium Sulfate & 5-1/4 of Magnesium Chloride Fill a one-gallon container half full of RO/DI or distilled water Add two cups (332g) of Magnesium sulfate with five and one-quarter cups (933g) of Magnesium Chloride to the container. Fill the remainder of the container with RO/DI or distilled water and secure cap. Shake vigorously and allow to dissolve for 24 hours altogether. Dosing Instructions: 2ml/gallon of Magnesium Solution will raise magnesium by approximately 25ppm. It is not recommended to increase magnesium by more than 50ppm per day.
