7.8 to 8.3 here. I never care to mesure the PH before I got my controller and now I know because I see it being tracked by the controller.
It's usefull to know this because recently we had a power outage and my stupid dosing pump does not resume on its own after a power outage. I watched my PH go down to 7.5 and I knew something was not right. Checked the KH and it was 6, checked the dosing pump and sure enough it was off. So having the PH fluctuate outside my normal range was a good indication that something was wrong.
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More fish die from human stupidity than any other disease...
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