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Thread: Getting that rusty look on some leaves.

  1. #1

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    Default Getting that rusty look on some leaves.

    Soil.

    Northern Lights photoperiod

    45 days old, been flowering since day 41

    20 litre pot

    repotted once on day 41, spotting started before this

    Soil is plant magic plus soil-supreme

    Organic nutes, currently 4ml per L, watering as needed.

    Air temps 18 lights off, 26 lights on

    Humidity averaging 40%

    HPS 400 watt

    Light schedule was 18/6 for veg now 12/12 for flowering

    PH : tap water 7.3, runoff 6.5.

    Lots of leaves developing rusty yellow pattern, not sure if this is fungal, deficiency or an effect of the humidifier that i ahd in the tent and have now removed and switched off.

    Click image for larger version. 

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    What is the PH of 1 liter of tap water mixed with 4ml of nutes? If the nutes are dropping your water significantly then I would start there.

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    Quote Originally Posted by CityDweller View Post
    What is the PH of 1 liter of tap water mixed with 4ml of nutes? If the nutes are dropping your water significantly then I would start there.
    Thanks, i only checked runoff with a ph strip and got ph value frmo my water quality report, so i've ordered a ph tester that'll arrive tomorrow then i can get solid data.

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    Quote Originally Posted by TheGreenFiddler View Post
    Thanks, i only checked runoff with a ph strip and got ph value frmo my water quality report, so i've ordered a ph tester that'll arrive tomorrow then i can get solid data.
    You're in good hands


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    I used to get that, when i used tap.

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    No spider mites under those leaves? Looks a little like stippling

    Don't think so but always best to have a good close look




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    Tap water ph is 6.3, after adding 4ml of bloom nutes to 1L of tap water ph was 5.4, and the runoff was 4.8 !

    Great for cabbages but not good at all for our green sisters.

    Looking for an organic ph-up.

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    Quote Originally Posted by TheGreenFiddler View Post
    Thanks, i only checked runoff with a ph strip and got ph value frmo my water quality report, so i've ordered a ph tester that'll arrive tomorrow then i can get solid data.
    if you are organic why the ph tester? Mate you havnt tried adjusting it have you?
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    Quote Originally Posted by TheGreenFiddler View Post
    Tap water ph is 6.3, after adding 4ml of bloom nutes to 1L of tap water ph was 5.4, and the runoff was 4.8 !

    Great for cabbages but not good at all for our green sisters.

    Looking for an organic ph-up.
    All you need is a healthy micro flora really. mollasess would be a good conditioner for the herd

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    Will add some baking soda next feed, seems like a reliable way to bring the pH up according to what i've read.

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