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Browning leaf edges
4Skinner4Dinnerstarted grow question 2y ago
A friend of mine is trying out indoors and seems to have this happening to his leaves.
Plants are autoflowers, tent is usually humid/High temp due 2 no extractor fan and 1 clip fan. Any clue what could be the problem?.
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Leaves. Color - Yellow
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GrowingGrannieanswered grow question 2y ago
I don't have an extractor fan either... all I have is a clip fan. What I do to "control" the heat and humidity is to unzip the tent partially. If it's heat I want to control, I unzip the top portion of the tent flap... and I may open up some of the top ports as well. If it's humidity I need to control, I unzip the bottom portion of the tent flap and go up about half way to the top... I'll also open up the lower ports and the screened "windows" at the bottom, again as necessary. I've even been known to unzip the entire tent flap and open all the ports... You've got to play around with it to figure out what's best. Autoflowers don't give two hoots about "light loss."
But your problem here has nothing to do with either heat or humidity issues... it's a potassium deficiency which additional PK will be more than welcome to her. Make sure the pH is balanced and proper (in soil, between 6.0 and 6.3 but in coco it should be between 5.5 and 6.2).
Good luck...
Shemshemetanswered grow question 2y ago
Looks a bit like light bleaching, dial the intensity back a bit perhaps.
No air exchange and a clip fan; what a challenge!
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