Calcium is a chemical element with the element symbol Ca
Calcium is extremely important for most reef dwellers, but especially for corals and calcareous algae. Reef-forming hard corals (SPS) require calcium in large amounts for the skeleton setup. LPS Steinkorallen have somewhat lower demands on the calcium content.
In seawater aquariums, the compound calcium carbonate is of particular importance. Calcium carbonate consists of about 40% calcium and 60% carbonate. Calcium / calcium carbonate must be fed regularly to the aquarium as it is consumed by corals.
The regular measurement of the Ca content is extremely important for a reef aquarium, taking into account that the KH value (alkalinity) should also be measured at the same time. Because calcium consumption also leads, by calcification to calcium carbonate, inevitably to a lower alkalinity
The magnesium content of the aquarium water also has an influence on the measuring result. Therefore this value should always be determined simultaneously with the Ca and KH measurements and corrected if necessary.
By the way: a good growth of calcareous algae or even white growth tips on coarse corals are a good indicator of sufficient calcium.
The GIESEMANN professional Ca Test
- Very precise titration test
- Table for the determination of the calcium value
- Accuracy 5 mg per liter
- Precise dispensing tip
- Very well recognizable color
- Depending on the calcium content sufficient for 40-80 tests
- Detailed instructions for use
- Reaction vessel with lid
- Titration syringe with precision tip
- CA1 Reagent
- indicator powder
- CA3 titration solution
- measuring spoons