PREIS - Balling 2 - Natriumhydrogen-Carbonate - 1 Kg

Named after its inventor, Hans-Werner Balling, the Balling method involves raising the calcium level and the carbonate hardness (KH) of seawater using two basic elements: calcium chloride (CaCl2) and sodium hydrogen carbonate (NaHCO3). Calcium and hydrogen carbonate ions combine, resulting in increased calcium levels and carbonate hardness.
At the same time, sodium binds with chloride, thus forming sodium chloride (table salt) which is the main component of seawater. In the long term, a contribution of these two components raises the concentration of chloride of sodium which, in turn, leads to an ionic imbalance. This is why a third element is needed: sea salt without NaCl, composed only of trace elements
In order to counterbalance the ionic imbalance, use the mineral salt of Preis and check the salinity regularly; depending on the amount added, the volume of sea salt to be dissolved will have to be reduced when changing the water. The excess sea salt results from the sodium chloride that is produced and from the solution of trace elements with the Preis mineral salt.


The three Preis salts, calcium chloride dihydrate, sodium hydrogen carbonate and mineral salt are first dissolved in 2 liters of osmosis water in separate containers. The following quantities are calculated for 2 liters of reverse osmosis water:
144g Preis Calcium Chloride Dihydrate; 163.8 g Preis sodium hydrogen carbonate and 48.75 g –Preis mineral salt-

Preis-Natriumhydrogencarbonat / Calciumchlorid

For a 100 L aquarium, the initial dose is 50 ml per day for each solution. It is important to pour the three solutions in different places in the aquarium, where there is good circulation. Dosing pumps have proven to be very effective for this purpose.

At first, measure calcium concentration and carbonate hardness every day. These values should only rise very slowly! If the values increase too quickly, the dosage should be reduced; otherwise, increase the dosage (the concentrations cannot rise by more than 10% compared to the initial values). When the ideal concentration is reached, one dosage per week of each component is generally sufficient.
Nevertheless, it should never be forgotten that your aquarium is sensitive to fluctuations; whether it is the introduction of new fish, water renewal, significant evaporation in summer, strong growth of red calcareous algae, variations in the supply of trace elements or again, changes inherent in the seasons, each of which causes fluctuations in values. It is then sufficient to adapt the dosage by increasing or reducing the quantities to restore the balance.