Julian Sprung's Reef Formula Calcium Concentrate rapidly raises the calcium concentration when the alkalinity level is already high. Also simultaneously lowers the alkalinity level, bringing both closer to a natural seawater ratio. When the calcium and alkalinity levels are properly balanced, stop using Calcium Concentrate, and continue using a balanced ion supplement such as Kalkwasser or C-Balance, which maintain alkalinity in addition to calcium concentration. Phosphate-, nitrate- and silicate-free. For marine aquariums. Add 1 tsp per 10 gallons.
Please click on "More Information" for dosage, ingredients, and more.