yellow leaves and red stems

Discussion in 'Marijuana Plant Problems' started by iwearpanteez, Jan 29, 2013.

  1.  
    iwearpanteez

    iwearpanteez Member

    i need help i am a new grower my first grow i have one plant thats sick i am trying a small homemade dwc

    2 gal tote
    2 100 w 65k cfls
    1/4 strength foxfarms
    ph level always 5.8
    plant bagseed 4 weeks old
    growing in lava rock
    lights on 12/12 from seed

    i see yellowing on lower leaves looks like burnt spot on lower and upper tips are getting burnt and the stems are turning purplish red
    was going so good been on nutes for 2weeks and now seems id has a bunch of problems

    i have 2 other plants in a AG thats growing great i would love to see if maybe this plant can be saved i hope someone can help me

    :wall::wall::wall: 100_0152.jpg 100_0153 - Copy.jpg 100_0155.jpg 100_0156.jpg 100_0157.jpg 100_0163.jpg 100_0165.jpg

    here the AG they are doing great i think :clap::clap: 100_0161.jpg 100_0162.jpg
  2.  
    nameno

    nameno Active Member

    Sorry,I don't know,but I would back off the nutes a little. I just saw this problem somewhere I don't remember where.I like your set up that's the way to go for me. How's your roots?
  3.  
    iwearpanteez

    iwearpanteez Member

    roots seem nice and white and i am only using now just 1/4 strength big bloom and grow big so should i try 1/8th ???? :peace:
  4.  
    chuck estevez

    chuck estevez Well-Known Member

    I'm gonna guess your using distilled or r/o water and not supplementing cal/mag
  5.  
    iwearpanteez

    iwearpanteez Member

    wow yes i am you think cal mag would help me as i just not sure what to do and i dont have a lot of funds to try and chase down what i need and i would rather buy once what i need ....as id love to save her
  6.  
    chuck estevez

    chuck estevez Well-Known Member

    If your using distilled or r/o and not using cal/mag, then I'm positive it will fix it. 2+2=4 if you know what I mean.
  7.  
    *BUDS

    *BUDS Well-Known Member

    They are hungry double it at least.
  8.  
    iwearpanteez

    iwearpanteez Member

    hi was wondering could i use like a garden lime as it has cal and mag as the main ingredient on the label
  9.  
    indikat

    indikat Well-Known Member

    more light and nutes will help
  10.  
    chuck estevez

    chuck estevez Well-Known Member

    yes, dolomite lime is a good choice
  11.  
    iwearpanteez

    iwearpanteez Member

    ive been trying to find how much to add to the mix would anyone know how much to add?
  12.  
    SpicySativa

    SpicySativa Well-Known Member

    Dolomite lime is not a good choice for a hydroponic Ca Mg supplement. You need some Botanicare CalMag Plus. Dolomite lime will raise your pH, which ain't what your looking for.

    Dolomite lime is a soil amendment, not a hydroponic additive.
  13.  
    iwearpanteez

    iwearpanteez Member

    wow so many ideas i stopped by the garden center as we dont have a hydro store close by.... told him what i was doing with my tomatoes :leaf: lol and he told me to try this garden lime one tsp per gallon place it in hot water and dissolve it and add it ...... does that sound right to anyone
  14.  
    carlo kro

    carlo kro Member

    your plant is already burnt so increasing nute strength will make it worse. just flush your plant and get a good cal/mag and this should sort out the problem. then continue with 1/4 strength.
  15.  
    chuck estevez

    chuck estevez Well-Known Member

    yep. you are correct, Not good for hydro.
  16.  
    sudodaemon

    sudodaemon Active Member

    Correct me if I'm wrong, but just because he uses ro or distilled water does not mean he has to supplement cal mag. A lot of nutes come with the neccessary cal mag in their formula so wouldn't adding cal mag induce toxicity if his nutes also have it? I run a DWC and have never used cal mag...
  17.  
    chuck estevez

    chuck estevez Well-Known Member

    they don't put enough to compensate you removing it all in r/o or distilled. His symptoms are clearly a ca/mag def.
  18.  
    Bakatare666

    Bakatare666 Well-Known Member

    Thanks.
    I was going to ask how he planned to add dolo to a dwc.
  19.  
    Bakatare666

    Bakatare666 Well-Known Member

    Did he conveniently have a 50lb bag to sell you?
  20.  
    SpicySativa

    SpicySativa Well-Known Member

    Some are formulated for RO water (enough Ca and Mg), and some are meant for tap water (which usually has calcium carbonate, magnesium carbonate, maybe some low levels of nitrates, etc).

Share This Page