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Sick plant, please help.

What is happening? In hydro. pH 6.4, temp 74 deg. Ppm 467. 6th week of flower. Looks like she's dying. Please help.

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Replies (10)
    • I'm not a hydro guy, but isn't 6.4 too high for hydro? You say your 6 weeks into flower?  According to chart at 6.4 Phosphorus isn't available, and in flower the P is important.   Don't worry Lex, for sure someone on here know's.   Good luck man.

      Growing Marijuana Nutrient Chart - General Hydroponics Flora series | Grow  Weed Easy

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      • excellent chart!

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      • Bring your ph down and make sure you are giving her bloom nutrients! 

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        • i like my pH around 6.0

          Is that a fresh reservoir? I would just dump out the contents and start with a fresh bucket of nutrients pH'd to 6.0. Theyre in flower now but look like they need a bit of nitrogen

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          • Yep I agree, PH is too high and dump the buckets. Cant do that with a soil or coco grow now can you lol, 

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          • N deficiency... caused by PH being off or just needs some N. S deficiency looks kinda like this too, but it's prob N

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            • My guess is it’s an iron or sulfur def caused by ur ph being to high, if it was nitrogen the bottom leafs wouldn’t have any green to them at all cause that’s where N would be pulled from first & seeing how the top is the most effected it tells me it’s a trace nutrient def which is most common with a high ph like you said u had.

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              • yes your PH is 2 high i use 5.6~ 6.1  ... 

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                • @ Josh, I've just recently learned from a real smart dude, that if you have a S deficiency, when you add S you need to add Fe too. Nice call my friend !!

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                  • Just that night I read about the signs of defecitis in a plant. This one that starts with the upper leaves is just calcium, because of the high ph. Calcium blocks magnesium and so on. Do below Ph, everyone says it right)

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