| Decorate algae and low animals need calcium for the setting up of their bowls or their lime skeleton. The calcium concentration in natural sea water amounts to 400-450 mg/l. In the aquarium it should be controlled regularly with a calcium tes. The same calcium content should be in the aquarium. It does not influence the carbonat hardness and the pH value. Besides it does not react, e.g. kalk water, with the important trace elements. |
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Sera calcium plus