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    HYDRO Leaf problems

    Click image for larger version

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    I’m not super experienced with deficiency or over saturation of certain nutrients. Please help me figure out what this leaf degradation means.

    Using
    botanicare pure blend pro grow (5ml/gal)
    cal mag (5ml/gal)
    pro-tekt silicon solution (2ml/gal)
    hydrogaurd (1/3 strength)

    Im doing a reservoir change and will be bringing the base nutrients up to 10ml/gal. The cal mag started at half strength but was increased to full when we started seeing calcium deficiency. Which has all since passed and healed except for this plant which is JUST NOW showing deficiency signals.

    keep in mind all plants are on the same flood table so they’re all fed the exact same solution at the same intervals. I’m confused as to why just this plant in struggling. :/
    Attached Files
    Last edited by IslandColas; 06-22-2018, 09:27 PM. Reason: Forgot to add the picture lol
    Perpetual harvest
    Sealed Room
    Full hydro
    Ebb and Flow
    Hydroton Media
    600w HPS
    GH Nutrients

    Current Grow:
    https://forum.growweedeasy.com/forum...icture-journal

    Rozay SOG 9 plant 4x4:
    https://forum.growweedeasy.com/forum...icture-journal

    #2
    Hi IslandColas ,

    interesting one. had a good look at the pic, and based on plant doctor guide i thought of 3:
    Does your cannabis plant have yellowing lower leaves between the veins? See pictures of a magnesium deficiency and learn the easy solution.

    similar pattern of brightening/discoloring between veins for the two leaves in top left quadrant of picture?

    (not sure why this may happen as you're adding CalMag to the water, maybe as you said it wasnt at the needed strength)

    2 - https://www.growweedeasy.com/phospho...iency-cannabis
    leaf stems look kinda reddish in color, i could be wrong.

    3 - https://www.growweedeasy.com/ph-fluctuations-cannabis
    the far leaf middle right side looks like the spots from the pH fluctuations.

    hows the pH of the water?
    GreenQube 1.5m x 3.0m x 2.2m tent
    2x CDMH 315W lights
    870m3/hr fan
    8 x 42L DIY DWC buckets, 2 airstones each

    Comment


    • FlyingDutchPaddy
      FlyingDutchPaddy commented
      Editing a comment
      You could look at adding some botanicare pure blend pro bloom to the grow?
      has the extra phosphorus

      Bloom: Nitrogen 2.0%, Phosphate 3.0%, Potash 5.0%, Ca 1.0%, Mg 0.5%
      Last edited by FlyingDutchPaddy; 06-23-2018, 06:33 AM. Reason: using -> adding some

    • FlyingDutchPaddy
      FlyingDutchPaddy commented
      Editing a comment
      extra thought: https://www.botanicare.com/products/...=true&sl=false

      Grow: Nitrogen 3.0%, Phosphate 2.0%, Potash 4.0%, Ca 1.0% , Mg 0.5%

      this seems to already have the extra CalMag in it... I don't know - can you go excessive (up to double or more recommended dosage) on CalMag in DWC without such leaf symptoms?

    • FlyingDutchPaddy
      FlyingDutchPaddy commented
      Editing a comment
      "creative thought" : is the feeder tube to that plant getting slightly blocker? reduced waterflow.. ?

      on my system the waterpump feeds all 4 buckets, but 2 feeder tubes have slightly higher waterflow than the other two.

    #3
    Have u checked the roots?

    Comment


    • IslandColas
      IslandColas commented
      Editing a comment
      Due to the type of system I cannot check roots at will. I did just transplant 5 or so days ago and they’re all super healthy bright white.

    #4
    Originally posted by FlyingDutchPaddy View Post
    extra thought: https://www.botanicare.com/products/...=true&sl=false

    Grow: Nitrogen 3.0%, Phosphate 2.0%, Potash 4.0%, Ca 1.0% , Mg 0.5%

    this seems to already have the extra CalMag in it... I don't know - can you go excessive (up to double or more recommended dosage) on CalMag in DWC without such leaf symptoms?
    Most base nutrients will have a calcium and Mg supplement inside because they’re theoretically made to be complete feed regimens. I only began using cal mag when I noticed the deficiency months ago when I began the grow.

    I’m increasing my base nutrient ratio and that should help the phosphorus deficiency. I’m going to stick with botanicares suggestions and not use bloom formula until we’re ready to make the flip just because it’s a different ratio of NPK then I desire for my veg plants.

    the system is ebb and Flow. There is no top feed/feeder tube.
    Perpetual harvest
    Sealed Room
    Full hydro
    Ebb and Flow
    Hydroton Media
    600w HPS
    GH Nutrients

    Current Grow:
    https://forum.growweedeasy.com/forum...icture-journal

    Rozay SOG 9 plant 4x4:
    https://forum.growweedeasy.com/forum...icture-journal

    Comment


      #5
      IslandColas Hi, was wondering how your plants doing with the spots on the leaves?

      recovering?
      GreenQube 1.5m x 3.0m x 2.2m tent
      2x CDMH 315W lights
      870m3/hr fan
      8 x 42L DIY DWC buckets, 2 airstones each

      Comment


        #6
        Originally posted by FlyingDutchPaddy View Post
        IslandColas Hi, was wondering how your plants doing with the spots on the leaves?

        recovering?
        Fully recovered and into further training! what happened was I lowered my nutrients too quickly and because it was the last plant to be topped it was weakest to handle the change. They’re now almost completely manifolded and starting their bush time. I appreciate the thought! Keep an eye on these seedlings in my grow Journal here’s some photos of the group and then that one problem plant.

        grow Journal:
        Im starting this grow journal a little late with us being 3 weeks past sprout but I have photos all the way back so I’ll catch everyone up. EQUIPMENT Vegetative



        Perpetual harvest
        Sealed Room
        Full hydro
        Ebb and Flow
        Hydroton Media
        600w HPS
        GH Nutrients

        Current Grow:
        https://forum.growweedeasy.com/forum...icture-journal

        Rozay SOG 9 plant 4x4:
        https://forum.growweedeasy.com/forum...icture-journal

        Comment

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