Raise pH, lower kH

[Trailermann]

I screwed up and was "pouring" CO2 into my calcium reactor and the surrounding atmosphere. Now my pH is way low (7.4) and alkalinity is way high (14). How do I fix this?

 

[blasterman]

Aerate the tank with an airstone....if you have a good size skimmer it should do this anyways.

If you have sensitive SPS like acros I'm less inclined to just sit back and let dKH fall. Montis and less fickle corals can let it ride. Muriatic acid lower alk safely, but just use a little at a time.

 

[Randy Holmes-Farley]

I agree. Aeration will bring up the pH and then just let the alk decline on its own.