Now I keep Ca Mg KH with CaCl2 MgCl2·6H2O and NaHCO3.If I use 1+ 2+ 3+,should I stop dosing analytical reagent or dosing them and 1+ 2+ 3+ together?How to control the dosage?
You should first balance your Ca, Mg and Alk at the point where you want them. Then start adding equal amount of component 1+2+3+. After 24 hour test your Alk and if its not at your desire level then increase the dosing for all 3 components in equal amount and then after 24 hour test the Alk again. Keep doing this till you reach your desired Alk level and then continue with that amount of dosing. Always dose equal amount of each component.