Kalkwasser (the sated solution contains 900 mg Ca/l), adds calcium to the aquarium. Additionally phosphates will be precipitated.
Application:
Please interfere 1 measuring cup (~ 7 g) of Calcium hydroxide in 10 l demineralised water and let depose in a hermetically locked container over night. With the clear liquid the aquarium water evaporated can be filled up drop by drop. Do not admit at on time, since thereby the pH-value could rise strongly.
