Calcium is one of the most important chemical element for the growth of an healthy marine reef and to create it into your aquarium. Many corals and invertebrates use calcium in huge quantities to create their structure and also in some biological process. The optimal value of calcium is between 400 and 450 mg/l. It has to be monitored frequently with Wave Ca check. Then it is important to keep control of the temporary hardness with Wave KH check, (KH>=8). Instruction for use: to increase the contents of calcium of 20 mg/l in your aquarium add 10 ml of wave Calcium every 100 l. of marine water. Use the product constantly according to the habitants needs avoiding oscillation (up and down) of values. Wave calcium can be added directly in the aquarium water
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