Little help with Apex pH probe calibration REEF2REEF Saltwater and Reef Aquarium Forum
Little help with Apex pH probe calibration REEF2REEF Saltwater and Reef Aquarium Forum . So i ordered two new lab grade probes.i just tried calibration both new probes on both ports (at different times obviously and yes orp was off) and calibration failed each and. I had my probe out of the water for about half an hour while doing some rearranging. PH wont calibrate New Apex REEF2REEF Saltwater and Reef Aquarium Forum from www.reef2reef.com I had my probe out of the water for about half an hour while doing some rearranging. Hey, so i decided on my scheduled maintenance to calibrate one of my ph probes after i installed the latest firmware. Remove protective tip on probe.