Should I be concerned about my pH being slightly high?

Question

My tank is extremely stable and has been running solidly with no problems for about 2 years now but I noticed that my pH has always seemed to be consistently high:

All other readings are as the community would expect, virtually no ammonia, nitrites, nitrates, phosphates, calcium is good, salinity good, regular water changes.

It just seems odd ...

I wonder if this is the reason that in the past I haven't been able to put certain forms of life in the tank.

I had issues with anemones mostly (3 died in the past causing serious havoc when they did).

Should I be concerned about this?

Answer 1

No need to worry. pH is affected by an almost immeasurable amount of factors. Something as benign as turning on a ceiling fan can measurably alter the pH on a tank due to CO₂ concentration in the air or degassing in the tank.

Just an example on my main reef tank:

On the 21st, we turned the air conditioner back on and you can see the average pH go up just from that.

I would definitely re-calibrate the probe if it hasn't been in a year or two.

But realistically, pH is more of a long distance measurement and isn't extremely important in day to day care. The exception is if you were directly dosing CO₂ for a planted tank or a calcium reactor in which you would want to keep close track of ph so you don't mess up the tank.