Simple method of dosing alk?

[Aquattro]

Originally Posted by ponokareefer

The contents would be baking soda, not kalk.

Personally, I'd use kalk. It keeps Ca and alk at proper levels, baking soda should be used more of a fix, IMO. I only use it if I notice a sharp drop in my alk. Otherwise, kalk. You wouldn't need it full strength either, and likely wouldn't need to mix it once stirred.