pH effects of Kalk vs Randy's #1 Alk

[stancfii]

I've been successfully using Randy's #1 recipe for Alk via dosing pump for a while, but am considering supplementing it with dosing saturated Kalk. My tank eats about 1 dKh/day. I've been considering a metered doseage of 1gal of saturated limewater/day over 6 time points in an effort to help maintain calcium instead of my manual weekly doseage.

Will the gallon of Kalkwasser have a greater effect on keeping pH high than the 37ish mL of Randy's solution in a 24hr time span?

 

[bertoni]

Kalk will raise the pH more. It contains no carbon carbon, so it reacts with more dissolved carbon dioxide per unit of alkalinity added. The effect might be a bit strong, but that's rare. I might watch the pH for the first day of dosing.