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Potassium and borium addition to seawater aquarium (500 ml)
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Colombo Marine Potassium+ Colour 2 based on main element Potassium, also contains Borium these elements are most important for red colours.
Dosage after Potassium test:
1 ml per 100 litres increase the potassium content with 2 mg/l and the borium content with 0,01 mg/l.
Optimal value for potassium is 400 mg/l.
If you do not test the potassium content you can dose based on the calcium absorption. This method is less accurate and must be used with care.
Dose per 100 ml Colombo Marine Calcium+ added 7,5 ml Colombo Marine Potassium+.