Leaves drying out with brown spots

Discussion in 'Sick Plants and Problems' started by Blazinjason, Jan 6, 2016.

  1. Already a week I have problems with some light burning or not..i have a 400w HPS 40cm from the top and a 250w cfl approx 25cm, leaves look like they need some calcium it has weird spots.

    Rh 50% temp 28c
    Giving them biobizz I hear that you get calcium Def. I haven't experienced any of that. the girls are happy with it so far.. [​IMG]
    [​IMG][​IMG]

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  2. #2 NaturalMistik, Jan 7, 2016
    Last edited by a moderator: Jan 7, 2016
    temps a bit high, is the hood air cooled? Can you keep hand in canopy and not be burned? The slight clawing and marks make me think heat stress/burn.
     
  3. I have a clip can blowing air constantly over it And I can keep my hand there forever. Maybe ph?

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  4. is the damage occurring on older (bottom) or younger (top) leaves first?
     
  5. #5 Blazinjason, Jan 15, 2016
    Last edited by a moderator: Jan 15, 2016
    Tanx for the replies My phone finally let me take a picture and she looks like this now. it's 2 weeks till harvest so I don't think I should be worried [​IMG]
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