Can you diagnose this problem????

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nimblez

New Member
Hi there,

I am growing Blue Cheese, 3-4 weeks flower. Substrate is coco and indoors. Watering around 5L every 3 days. Using Canna Aqua + supplements with a little Cal-mag + Mammoth P.

Everything looks fine except some weird older leaves inner middle leaves and tips of serrated leaf edge pointing up slightly (more so toward top of plant)

So I'm thinking it's magnesium and heat / humidity from proximity of light from plant?
 
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hotrodharley

hotrodharley

Well-Known Member
nimblez said:
Hi there,

I am growing Blue Cheese, 3-4 weeks flower. Substrate is coco and indoors. Watering around 5L every 3 days. Using Canna Aqua + supplements with a little Cal-mag + Mammoth P.

Everything looks fine except some weird older leaves inner middle leaves and tips of serrated leaf edge pointing up slightly (more so toward top of plant)

So I'm thinking it's magnesium and heat / humidity from proximity of light from plant?
Click to expand...
Heat stress and if you can get more air moving or distance from light it won't screw anything up.
 
shawnery

shawnery

Well-Known Member
Sort of off topic but those are some really cool looking leaves. Those are seriously serrated!
 
N

nimblez

New Member
Thanks for your input everyone, it is greatly appreciated!

Here is another image snapped with a real camera, for your viewing pleasure.

IMG_20181025_070258456.jpg
 

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john wishmyer

john wishmyer

Well-Known Member
not saying you have this but i just fixed a cal mag issue where i had purple streaks leading up to my stems n then to the veins of the leaves. id just wait n see if it gets worse
 
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nimblez

New Member
john wishmyer said:
not saying you have this but i just fixed a cal mag issue where i had purple streaks leading up to my stems n then to the veins of the leaves. id just wait n see if it gets worse
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Yeah I have those streaks too, I'm going to up cal-mag somewhat. Do the purple streaks go away once corrected? Or is it just new growth normal?
 
john wishmyer

john wishmyer

Well-Known Member
nimblez said:
Yeah I have those streaks too, I'm going to up cal-mag somewhat. Do the purple streaks go away once corrected? Or is it just new growth normal?
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they should fade back to reg (just what i noticed with mine) i kno every strain has their own set of traits all that stuff. I know people also associate phosphorus def with purple stems so its tricky to narrow it down.
luckily mine must have been cal or mag or else i woulda fried whatever was left of my plant
 
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nimblez

New Member
Fair enough mate. I have General Hydroponics CALiMAGic, it says to apply at 1mL / L, do you think this is enough for Blue Cheese under LEDs grown in coco, or should I apply at 1.5x to 2x ? Thanks
 
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