I’ve done a water change and calibrated my salinity probe and and retried calibrating my ph probe but it’s still not working. Will the Milwaukee ph probe you recommend work with apex? And how long have you used it for before having to replace it?Also, stupid question, but I have done this myself and I do see you do have two on your dashboard.... Are you running the calibration on the right probe? I almost cooked my tank before because I had my if/then programmed on the wrong temp probe, so I could see how that could happen


