Is it normal for pH to rise during the day?
Hi I have just recently out an electronic pH meter on my tank and have noticed that during the day and into the later evening the pH changes....a fair bit
All my numbers are great and pH in the morning is 6.6 ( where I want it) but by the evening it's looming around 7-7.2s then in the morning it's back down again is this normal?
pH as above
KH 4 (API test solutions)
GH 5 (API test solutions)
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