jkimsey
New member
Anyone that can tell me how to add a co2 monitor to a sense port? I want to control a vent fan for fresh air to try and keep ph from dropping, but it is cold here and don't want the vent fan running all of the time. Sump is in my garage 450 gallon tank plus 125 gallon sump. Dosing kalk and alk is 9.7 but ph is only 8.07 at best. using x10 and iv for testing.