Why is calcium required?
Calcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals.
Calcium also fulfils many biological functions. These processes result in depletion of calcium.
Quite often a too low calcium concentration retards growth of corals and calcareous algae.
NSW (Natural Sea Water) contains 400 - 450 mg/L calcium.
This is also the value we should strive for. For a stable aquarium environment the fluctuation in calcium content should not be more than approx. 15 mg/L.
About Coral Calcium
We have highly concentrated this supplement. In fact a higher concentration is impossible to achieve. Each liter contains approx. 160,000 mg of calcium. You will appreciate this when you consider that an average aquarium depletes 5-8 mg of calcium per liter, each week.
To avoid an ionic imbalance, we properly balance the calcium with ions such as sulfate, chloride, bromide, sodium and magnesium.
All ingredients are of a pharmaceutical quality or even better. This ensures that no unwanted elements are added to your valuable aquarium.
Right after you have dosed this supplement the calcium is immediately 100% available to your corals and other calcium requiring organisms.
If calcium is depleted because of growth of corals and coralline algae then supplements such as Salifert’s KH+pH Buffer and Strontium are also required. Since they form together with calcium the major ingredients of shells, coralline algae and the skeletal material of corals.
Shake before use.
Dose 5 ml per 100 liters (25 gallons) once a week or two weeks.
Adjust dosage according to individual requirements (use a calcium test, e.g., Salifert’s Calcium Profi-Test). Every 5 ml per 100 liters (25 gallons) will increase the calcium concentration by approx. 8 mg/L (8 ppm).
Never increase the calcium concentration by more than 50 mg/L a day. Maintain a calcium concentration of 400 - 450 mg/L.