I did a 50% water change on Tuesday, tested my Ph that night and it was 6.4, tested it on Wednesday morning and it was 7.2, tested it on Wednesday night and it was 6.4, just tested it there and it's 7.2! What could be causing this? Tested my tap water and it's about 7.2ish.
Ph Swinging?
- Thread starter Jhncf
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