Salifert Calcium Profi-Test Calcium is a must for coralline algae, hard corals, and soft/leather corals. Low calcium concentrations impede coral and algae growth – a healthy aquarium calls for consistent calcium content within 15 mg/L of the optimum range of 420 - 450 mg/L. Salifert's kit measures 5 mg/L and is precise, ensuring your calcium levels remain stable. It's also unaffected by magnesium, with 50-100 tests possible - great for both marine water and freshwater. But beware: Ca-1 reagent contains sodium hydroxide, and can be hazardous to eyes and skin – if ingested, call a physician right away. Keep it out of reach of children.
Skip to content