Diagnosis? PH or Iron Def?

Discussion in 'Sick Plants and Problems' started by klockwise, Jun 7, 2009.

  1. Hey all, this is my first grow. The rest of my plants are looking pretty healthy except one.
    I am using a 400w MH lamp, Ionic Grow nutes (1/2 strength), Tap water (PH is about 6.5-7.0), Temp is 70-73 day, 65 night.

    I have tried doing some research and believe it to be either an Iron deficiency or the PH is too high. Iron deficiencies come with high PH levels I read. Any experienced opinions would be appreciated :smoke:

    Here is the sick girl:
    [​IMG]

    Here is one of the healthy ones to compare:
    [​IMG]

    together:
    [​IMG]
     
  2. Been doing some more research. Could this possibly be from temperature change?

    Thinking its either: High PH correlating to Iron deficiency or Temp change (70-73 day, 65 night)
     
  3. I would say temp issue, unless you germed them in high ph wool, like +6.0 and up, for wool the best range is about 5.2-5.5
     

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