FAQ: How concentrated is Seachem Reef Advantage Calcium? What's the Advantage?

Reef Advantage Calcium™ is a concentrated calcium supplement capable of raising 20 gallons of water by 25 ppm of calcium with only 1 teaspoon. The biggest advantage is the ability to know exactly how much product to add in order to achieve any calcium level while restoring other essential ions. As an added bonus it mixes to a pH of 8.3 to 8.6 so you can forget about the pH battles associated with other calcium supplements. Additionally, it also contains strontium and magnesium ratios proportional to typical depletion rates. If Reef Advantage Calcium™ is used to maintain calcium, then other strontium and magnesium supplements are not necessary.