pH of 8.2 - 8.5


New member
My pH is between 8.2 (lights off) and 8.5 (lights on).

Is there anything wrong with a pH of 8.5 ?



New member
I would make certain the probe is calibrated correctly. Probes will go out of calibration over time, and tend to read high.

If all is fine, then there's nothing wrong with that pH level. I would suggest checking your alkalinity though and make certain it's not too high.

I know if I keep my alkalinity at 8 dkh, my morning pH will be around 8.00, sometimes a bit less. Without raising my alkalinity significantly, I've never been able to have an 8.2 morning pH.