Composition

21.9 % Carbonate, 17.4 % Hydrogencarbonate, 17.1 % Calcium, 14.9 % Sulfate, 9.9 % Chloride, 5.7 % Sodium, 5.4 % Magnesium, 2.3 % Potassium, 0.05 % trace elements

 

Ion-standard relationship

Average distribution of the most frequently occurring ions (weighted in %) in fresh-water

Cations Anions
Calcium, Ca2+ 64.4 Hydrogencarbonate, HCO3- 80.0
Natrium, Na+ 18.4 Sulfate, SO42- 13.7
Magnesium, Mg2+ 10.6 Chloride, Cl- 6.3
Potassium, K+ 6.6

[according to “Krause: Hand-book of Aquarium-water”]


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