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I recently switched from GH Flora series to Jack's 321 after watching a GreenGeene's Garden video. If I ran GH over 1.8 EC on a 3ft plant in flower, it would start to show a little burning. With Jack's I'm starting at 2.2 EC from rooted clone and have no burn. Why is that?
February 13, 2020 at 09:54AM
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