Cali Kid Corals

pH Meter

I wouldn't even bother really. Have never used one so not sure on what is best.
Maintain a good alk and run a skimmer and ph shouldn't really ever be a problem
 
Remember to calibrate the probe every now and then, especially if you are controlling other equipment based on the probe reading.

The probe on my apex was off by .1

Was reading 8.0 instead of 8.1

I imagine the longer you wait between calibration, the farther off the reading is.
 
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