Yellow/brown Spots (Pics Ink)What Her Condition?

Discussion in 'Sick Plants and Problems' started by blind88, May 22, 2013.

  1. We need all the info on your grow including:

    What type of medium; soil or hydro?
    What brand and type of soil?
    Indoors or outdoors?
    What strain?
    How old are the plants?
    What type of lights and how many watts?
    How far from the lights?
    What is your watering frequency and source of water?
    What, how much and when was it fed? NPK?
    What is the medium/runoff pH and PPM if in hydro?
    What are the temps and humidity in the room?
    What size pots?
    Any bugs? Look real close.
    Any other pertinent info?

    If any of these questions have already been answered please disregard as I cut and paste this for everyone.

    If there is leaf discoloration please TAKE PICTURES WITH ALL GROW LIGHTS OFF, ESPECIALLY HPS & LED's. Taking pictures and taking them with lights off, allows us to see what the leaf discoloration looks like.
  2. Friend, you left out the most important piece of information that I need... what's the ph run-off of those plants?
  3. So the run off ph is 5, the watering ph is 6.5
  4. #6 mmman, May 23, 2013
    Last edited by a moderator: May 23, 2013
    Your starting to miss P, and Mg. You need to bring your run-off ph back to 5.8. Flush.
  5. how do I bring back my P and Mg. Do I need to start using another fertilizer? I bought this from the grow shop that mofo told it be for veg!
  6. Wont flush only neutralize the soil
    You bring back the P and Mg by sorting your ph first then add proper nutes. Flush the mix (I believe your soil-less, right?) with whatever you've got, even if it's tap water to flush the salts out, then go back in with properly pd'd water at 5.8 until it runs out the bottom, then check the run-off again to ascertain proper ph of 5.8
  8. how do I prevent this from happening again?
    Do i have to flush the soil before use?
    Anytime you use a soil-less mix or any substrate for growing cannabis you should check the ph run-off each and everytime you run water through the plant... it's the only way to properly monitor your plant.

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