Cheap Tropical Fish - Coral Aquarium
HOW TO SUPPLY CALCIUM TO A CORAL AQUARIUM Method 1 From the start, i.e. when you put the first water in, use commercial salts enriched in calcium. Then, add the same salts over the course of regular partial water changes, at the rate of 10% per week. Some commercial salts are specially designed for marine invertebrates. Method 2 Use commercial products specially prepared to increase calcium levels. Method 3 Place a calcareous element, such as calcareous rock, or crushed and washed oyster shells, in the filter, and this will gradually release calcium. However, this method will not give rise to any rapid or significant increase in calcium levels. Method 4 Prepare a solution of slaked lime, Ca (OH)2, available in aquarium stores, at a rate of 1.5 g/liter. Pour in 1 ml of this solution per liter of sea water. Proceed gradually, monitoring the pH constantly to ensure it does not rise above 8.5. Method 5 This is the most complicated, but also the most effective. Prepare two solutions: - one of dehydrated calcium chloride (CaCI2, 2H2O) at a rate of 15 g/liter, which will provide the calcium; - the other of sodium bicarbonate (NaHCO3), at a rate of 17 g/liter, which will provide the carbonates. Then calculate the difference between a carbonate hardness of 130 ppm (7.2 CH) and the one measured in the aquarium. Multiply the result by the net volume of the tank, and divide the result by 10. This will give the amount of each solution required, in milliliters, to pour into the aquarium. Example: for a tank with a net volume of 500 liters, with a carbonate hardness of 100 ppm (5.6 CH), the result is: Amount of each solution (in ml) = 500 x (130-100) + 10 = 1,500 ml. The following table gives you the required amount of each solution (in ml) for specific cases.
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