I took a PH reading today and the first picture is when I first shook it up. It looks like about 7.2. I got distracted and when I came back the color had turned much pinker and it looked to be 7.8-8.0. I was gone only a few seconds. Is this normal? I never noticed this before. I expected the PH to be low because I had just added 4 pounds of CYA.
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