I’ve calibrated my apex probe three times, and backed up my test with a RedSea pH test. I’m also running the color changing CO2 scrubber media changing our every few days and making sure the CO2 in my home doesn’t go over 500-600ppm.
My tank is setup since the first week of August, and is doing great. I’m dosing 2part (not using a calc reactor). How the hell is my pH still so low?