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    SOIL What is this?

    It looks like heat stress and calcium def but it’s not. I’m baffled! 82 degrees, 1000-1200 co2, 40% humidity, green planet 3 part + b vitamin, water is around 70 degrees when feeding, 800 ppm last feed. Any suggestions?

    #2
    Could be a root issue. Seems sometimes leaves can curl up like heat stress https://www.growweedeasy.com/cannabi...blems-cannabis

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      #3
      One of my plants is doing taco leaves also! Interested in what you find out. Thanks

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        #4
        Not sure about the curling leaves - some kind of stress on the plant - the yellowing leaves looks like a calcium/magnesium deficiency. I use Green Planet nutes - 3 part system - but I also use their Pro-Cal.
        ​​​​​​3 X 3 gorilla. Promix soil . Green Planet Nutes
        Mars Hydro
        Vortex in-line 6" fan

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          #5
          The taco looking leaves on the tops of the plants indicate light /heat/humidity stress. The deficiency on the leaves is most likely due to PH issues.
          4x4 600w HID empty for summer
          3x3 400w HID with Bruce Banner and Skywalker Kush
          2x2 65w Quantum Board LED with 4 mother strains
          running all simultaneously for a perpetual harvests.
          https://forum.growweedeasy.com/forum...hash-adventure

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            #6
            how close are your bulbs to the canopy?

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              #7
              if it were me I would start by raising my lights up a few inches.

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                #8
                Looks like a PH issue.

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                  #9
                  I have 1000 watt double ended hps bulbs about 3 feet above the canopy but even at 5 feet the leaves curl the same. I water at 6.2-6.4 every time.

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                  • Toker1
                    Toker1 commented
                    Editing a comment
                    Some stains are more light sensitive than others

                  • NikkiAnne
                    NikkiAnne commented
                    Editing a comment
                    Are you checking pH run off as well? My run off was over a point higher than what I was putting in.

                  #10
                  This is EXACTLY what happened to my plant a few weeks ago and it turned out to be a pH issue. (too high) It was a couple weeks into my veg stage and i was growing under CFLs about 125w in total. Good luck.

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