http://reefkeeping.com/issues/2006-02/rhf/index.php

When preparing baking soda as part of a balanced two part dosing system, pH must be factored. If your pH is high, as it will be if Kalkwasser is being properly dosed, then the baking soda should be baked at 300 degrees for one hour.

Shake the solution before each dosing, don’t worry about a few very small chunks.


Kalkwasser dosing should be the first step in maintaining calcium and alkalinity levels. Maintaining proper magnesium levels should be second, then a balanced two part can be dosed to achieve the desired calcium and alkalinity ratios.