Calcium is necessary for the growth of hard corals, soft corals, and other reef invertebrates such as tube worms, snails and clams, as well as purple, pink and green coralline algae. As calcium is depleted in reef aquariums, supplements can be used to replenish the calcium levels.
1. Kent Marine Liquid Calcium
Photo by PriceGrabber
Concentrated liquid calcium formula which Kent Marine states is best used in combination with Kent Kalkwasser Mix.
2. Kent Marine Kalkwasser Mix
Photo by PriceGrabber
The original calcium supplementation method for reef systems. Add powder to fresh water for dosing. Can be stored for up to one week.
3. Kent Marine Tech•CB
Photo by PriceGrabber
A two part ionically balanced liquid calcium and buffer system which can achieve ideal calcium levels while maintaining proper alkalinity.
4. C-Balance
Photo by PriceGrabber
By Two Little Fishies, this two part calcium and alkalinity maintenance system adjusts calcium, magnesium, and strontium ions to natural seawater ratios.
5. Seachem Reef Complete
Photo by PriceGrabber
This easy to use supplement restores calcium, strontium, and magnesium levels in reef aquariums.
6. Reef Calcium
Photo by PriceGrabber
Manufactured by Seachem, this product is specifically designed to supplement the reef aquarium with readily bio-available calcium, delivering 175 times more calcium than Kalkwasser.
7. Turbo•Calcium
Photo by PriceGrabber
Manufactured by Kent Marine, this dry calcium supplement this is for experienced reef keepers who desire to rapidly raise the calcium level in their aquariums.
8. Kent Marine Liquid Reactor
Photo by PriceGrabber
A one bottle calcium supplementation system which raises the concentration of calcium, magnesium, strontium, and carbonates (alkalinity) in a reef system.
9. Reef Kalkwasser
Photo by PriceGrabber
Manufactured by Seachem, this ultrafine, powdered form of calcium is used for dosing reef aquariums. Increases or maintains calcium concentration at natural seawater levels. 500 grams makes 650 L. of kalkwasser solution.
10. Reef Advantage Calcium
Photo by PriceGrabber
Manufactured by Seachem, this dry version of Reef Complete contains a buffered blend of calcium, magnesium, strontium, sodium, potassium, and other salts.
