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Ph pens
burnercoronastarted grow question 2 years ago
Not a question but a PSA. Don't always put all your trust in your pH pen. Mine was reading just over 7. So I lowered it just a bit, but some plants kept getting worse. Checked with pH drops and it was over 8.5 lmao. Damn near killed 2 of my ladies.
Solved
Other. Other
likes
GrowingGrannieanswered grow question 2 years ago
Yup - I calibrate mine at least once a week if not more often....
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