Kalkwasser and bottled co2 use

[fishpoo]

does anyone have any info on doing this. i started doing it because my reactor pump died. i thought i'd experiment while waiting for the new Ehiem. i teed the airline in the skimmer to the co2 and drip kalk into the skimmer also. i'm not sure if this is the way to go. This is day three and ph is constant at 8.1 day and 8.0 night. i have a reverse lighting refugium.

 

[LFS42]

I would think that if the reactor is DOA, then you would not need to drip CO2 into the system.
The CO2 lower the pH and the agranite (sp) racts with the kalk to convert into CA, or something like that.
So, without the low pH and the agranite (again sp) I don't think you need to add the CO2.