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Thread: Deficiency or Toxicity. Calcium, magnesium, Phosphorus or Potassium

  1. #1

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    Default Deficiency or Toxicity. Calcium, magnesium, Phosphorus or Potassium

    Hi guys. This is my first ever grow, and I'm using an RDWC setup I've built myself over the recent months in lock down,
    Im growing two plants, two automatics, one Ak47 Auto and a white widow Auto germinated just 10 days apart but started flowering within a couple days of each other. Upon week 5 pre flowers were showing im now in week 6 heading to 7
    My largest plant is showing signs of deficiency and now the smaller white widow is showing the same deficiency.
    I have a feeling its a Cal Mag issue that's now combined with another issue like Potassium
    The issues started when I flipped to flowering nutrients,
    Im using the Current Culture H20 range nutrients as per their recommendations but I'm not sure how to correct these problems
    What do you guys think is the issue and what I can do to correct it. Do I need to remove the damaged leaves ( only showing deficiency on the middle of the plants mabey slightly in the upper half mores, and only effecting largest fan leaves.
    As I said during the 5 weeks of veg I had no issues or deficiency. But now in fpower im having trouble and I dont want to sacrifice on my yield by slowing the early stack formation. Below are photos of the impacted leaves and the overall plants themselves together.
    Is it toxicity or deficiency ...
    Also should I defoliate the damaged leaves and large fan leaves to promote stacking or flower growth. Ill add a few more photos showing how dense they are and how many lower branches they have which I think may be best if id remove them. At the moment I'm running them under 24 hours of light under a 600w HPS.
    Need some experienced help please guys. Thankyou for you time
    If you need more info just let me know
    Also guys because these are automatics, what light schedule should I stick to, some people say 24/7 for auto even during flower other people say 18\6 can someone let mr know their
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  2. The Following 3 Users Say Thank You to GrowDogg For This Useful Post:

    GEORGE (10-03-21), Mac (10-03-21), Petal (10-03-21)

  3. #2

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    Hey there Growdogg

    sorry you are having issues and also sorry I can't offer any help as I have no experience with indoors, autos, hydro, your nutes etc but yes there is something up there.

    Hopefully one of our knowledgeable growers can peek in and offer some help.

    All the best

  4. The Following 3 Users Say Thank You to Petal For This Useful Post:

    GEORGE (10-03-21), Mac (10-03-21), RoamingMutt (19-03-21)

  5. Default

    GrowDogg I saw that you posted another thread after this one..although I did ask you politely no more multiple threads..

    You had already added your images to this one, so there was no need to create another to a different section of the forum.

    I've had to remove around 4-5 of these threads of yours now..


    Leave this question to this one thread, please and thank you.

  6. The Following 3 Users Say Thank You to IceCalibur For This Useful Post:

    GEORGE (10-03-21), Mac (10-03-21), Petal (10-03-21)

  7. #4

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    Echo
    Echo
    Echo
    Echo
    Echo
    It's Not What You Know, It's What You Can Prove

  8. The Following 4 Users Say Thank You to M_C For This Useful Post:

    GEORGE (10-03-21), IceCalibur (10-03-21), Petal (10-03-21), RoamingMutt (19-03-21)

  9. Default

    Quote Originally Posted by M_C View Post
    Echo
    Echo
    Echo
    Echo
    Echo

  10. The Following 3 Users Say Thank You to IceCalibur For This Useful Post:

    GEORGE (10-03-21), M_C (10-03-21), Petal (10-03-21)

  11. #6

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    Quote Originally Posted by IceCalibur View Post
    GrowDogg I saw that you posted another thread after this one..although I did ask you politely no more multiple threads..

    You had already added your images to this one, so there was no need to create another to a different section of the forum.

    I've had to remove around 4-5 of these threads of yours now..


    Leave this question to this one thread, please and thank you.

    Ice, Ice Baby! x

  12. The Following 2 Users Say Thank You to Petal For This Useful Post:

    GEORGE (10-03-21), IceCalibur (10-03-21)

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