They determine the calcium value and the carbonate hardness of their aquarium water, they now daily dose, at different times, the same amount of each liquid into the aquarium. Begin dosing with small amounts and they also check the daily values​​. Increase slowly moving the daily addition. After about 10-14 days, they have determined the optimum daily dosage. Do not overdose and adjust the water levels slowly! More about simple use of the Balling method they experience on our Balling page, where they also have the opportunity to download a free calculator salt. Our Balling salts are natural pure pharmaceutical and food quality. Attention, calcium chloride dihydrate is lovely, avoid contact with skin, eyes and respiratory organs! Please reach of children!