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Product: No. 1 Component Calcium Concentrate
Contains important calcium for the skeleton build-up of corals and other invertebrates.
Ideal calcium levels are between 400 and 450 mg/l (ppm). Use the sera Ca-Test kit to conveniently check the calcium level. Combined application provided, sera marin 1 and 2 are balanced according to the optimal pH value in marine water and stabilize the natural buffer system in reef aquariums.
Content: 250ml (8.45fl oz) sufficient for: 660 US gal. (2,500 liters)