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    Help!! Plants leaves are turning Yellow

    Also, this table will help you a lot: https://www.rollitup.org/marijuana-plant-problems/226830-cannabis-nutrient-deficiency-table.html And so will this, this is the best illustrated cannabis problems article I have found: http://www.icmag.com/ic/showthread.php?t=11688
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    Help!! Plants leaves are turning Yellow

    And you might also be running the light a bit too close, I see some curling up on some of the pics. What's us humidity like?
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    Help!! Plants leaves are turning Yellow

    Hmm ur ph seems right, let it cycle between 5.8 and 6.3 instead of keeping all the time at 5.8-5.9 How much nutes did you use? I would have to agree that it is some kind of def, progably a cal/mg def plus some form of npk def (red stems might mean P def rather than genetics) 1- Before the...
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    Nanotechnology Co2 enrichment spray

    I just ran across this Co2 spay from reforest.com. They claim: CO2[spray], is a revolutionary calcium carbonate foliar spray proprietarily-derived from a natural occurring compound. It utilizes a new form of nanotechnology which processes the compound to such a fine size that it is able to...
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