Slappy*McFish Global Moderator Staff member Feb 18, 2002 7,835 48 75 Raleigh, NC Nov 18, 2012 #31 That was what I first suspected. The fluctuating CO2 and higher pH was a red flag. Thought it might have been an issue with a controller or regulator. Stabilize that CO2 at ~30ppm. You pH should read lower in that range, as well.
That was what I first suspected. The fluctuating CO2 and higher pH was a red flag. Thought it might have been an issue with a controller or regulator. Stabilize that CO2 at ~30ppm. You pH should read lower in that range, as well.