Ohio Reef

Reef Discussion => Equipment => Topic started by: ohioreef on January 24, 2021, 16:06:09

Title: Apex pH Probe
Post by: ohioreef on January 24, 2021, 16:06:09

I am new to the Apex, just set mine up last night. I notice my pH, as read by the Apex, is about .3 lower than what my test kit shows. Is this normal? Which is more accurate? Is the difference concerning or do I use the Apex as more of a way to watch the “trend.”

Title: Re: Apex pH Probe
Post by: CoralBeauties on January 24, 2021, 17:02:54

Did you calibrate the probe? They need to calibrated with calibration fluid. Usually 7 and 10
Jeff

Title: Re: Apex pH Probe
Post by: ohioreef on January 24, 2021, 17:13:43

Yes, I calibrated it. For all I know my test kit could be off, or my reading the colors. LOL I would suspect the Apex to be more accurate.

My concern is according to the Apex my pH is only 7.7.

Title: Re: Apex pH Probe
Post by: CoralBeauties on January 24, 2021, 22:41:45

To confirm your calibration just drop the probe into calibration fluid and see if the apex reading matches the fluid.  If calibrated properly I would trust the apex.
Jeff