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Thread: Plant gone yellow quick, please advise

  1. #1

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    Default Plant gone yellow quick, please advise

    My girls have gone yellow quickly I?m sure there?s some people growing the Cinderella jocks that have had the same issue.

    Soil, Hydro, coco - soil

    Strain - Cinderella jock

    Photo or Auto - Auto

    Plant age - 8 weeks 5 days

    Pot size - 12L Air pots

    Has it been repotted and when - No

    Soil type - Plant magic supreme

    Nutes and additives used and how often for soil - Plant magic OT, I?m feeding 2ml pl grow, I?ve just upped to 3ml pl bloom (previous feed was 2ml pl) and 0.75ml pk.
    I feed every time they need a watering which is usually every other day. I feed 2L per feed which usually gives me a dribble out the bottom. I also fed them calmag at 1ml pl which was about 3 weeks ago.

    Air temps (min, max)- min 23c, max 25c

    Res temps (min, max) - I hand water but I check and usually it?s about 19.5c it never goes below 18c or above 21c. It?s just sat at room temp.

    Humidity - 50%

    Lighting type and wattage - HPS Dual spectrum 600w

    Lighting schedule - 24/0

    PH level - I have a PH probe I?m not sure how reliable it is but it says 6.8




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    Cinderella jock and 1 other
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  3. #2
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    Default

    did that yellowing start after you introduced cal/mg??
    1ml is strong especially into living soil




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    Default

    Quote Originally Posted by MonsterEnergy View Post
    did that yellowing start after you introduced cal/mg??
    1ml is strong especially into living soil
    No mate. Its just happened really this is the same plant 5 days ago. I know it?s slightly yellow but no where near what it?s like now.


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    Default

    This is what happens to me when I try to grow large plants in small pots.

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    Default

    Quote Originally Posted by CityDweller View Post
    This is what happens to me when I try to grow large plants in small pots.
    How do you get over it lol? Get bigger pots. 😂😂


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    Default

    If it were me (& I'm well out of touch with soil!) I'd keep to 3ml/L of the nutes & run about 6 L through her - a mini flush you may call it

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    Quote Originally Posted by millwall115 View Post
    How do you get over it lol? Get bigger pots. 😂😂


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    Or veg less. Or get super good at managing feeds and PH. When the plant uses up the soil it gets super fussy about PH and feed strength. Most soil issues are PH related imho.

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    Quote Originally Posted by CityDweller View Post
    Or veg less. Or get super good at managing feeds and PH. When the plant uses up the soil it gets super fussy about PH and feed strength. Most soil issues are PH related imho.
    It?s an auto mate.


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    Default

    you added heavy cal/mg into a living soil ''nuked it''
    the soil slowly dies over weeks due to the cal/mg dose

    that's jmo, i hope i am totally wrong tbh

    try what M_C said

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    Quote Originally Posted by MonsterEnergy View Post
    you added heavy cal/mg into a living soil ''nuked it''
    the soil slowly dies over weeks due to the cal/mg dose

    that's jmo, i hope i am totally wrong tbh

    try what M_C said
    Lol here we go again lol this seems to be debated here, I wouldnt put cal/mag in a drench ever for soil for the reason you state but I know good/intelligent growers here that would and say it wont damage microbial life at 0.5 to.1ml.per litre


    Id flush as M_C said if it were my grow fyi
    Last edited by Gaz; 28-12-18 at 10:19 PM.


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    Default

    wasn't my experience using cal/mg especially not in soil,
    have said it above already Gaz

    Quote Originally Posted by MonsterEnergy View Post
    that's jmo, i hope i am totally wrong tbh
    only time i ever get cal/mg deficiency is around week 5 of flower,
    so damaging the soil makes little difference at that stage and i only add 0.5ml into 2lt of water

    that's 4x more than i add,

    my ''yellowing'' stopped after i stopped adding cal/mg when the plants didn't actually need it,
    that's my experience with cal/mg so far,

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    Quote Originally Posted by MonsterEnergy View Post
    wasn't my experience using cal/mg especially not in soil,
    have said it above already Gaz



    only time i ever get cal/mg deficiency is around week 5 of flower,
    so damaging the soil makes little difference at that stage and i only add 0.5ml into 2lt of water

    that's 4x more than i add,

    my ''yellowing'' stopped after i stopped adding cal/mg when the plants didn't actually need it,
    that's my experience with cal/mg so far,
    out of curiosity are you reusing your soil?
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    Quote Originally Posted by sourshoes View Post
    out of curiosity are you reusing your soil?
    no mate, at 12 pound a bag i just buy new soil,
    id probably spend more fixing it ''amendments'' than buying it new again

    in a 6.5lt pot i don't go threw crazy amounts of soil

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  27. #14

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    Quote Originally Posted by MonsterEnergy View Post
    no mate, at 12 pound a bag i just buy new soil,
    id probably spend more fixing it ''amendments'' than buying it new again

    in a 6.5lt pot i don't go threw crazy amounts of soil
    right on.

    I was going to mention that if you're reusing your soil I wouldn't add cal mag.

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    Any living soil that has dolomite lime in it doesn't need cal-mag added to the water! If you put cal-mag in your mix anyway, you will get what you got!

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