Dwc lead tips curling upwards

P

Patriots781

Active Member
I'm in dwc ph 5.5 ppm 400 week 4 of veg I thought at first it was the light so I turned it down to about 250 ppfd then I still got it so thought I was overfeeding so gave them less nutes did a bucket change still happening wtf can it be from low humidity ? Temps 70s humidity in 40s tips burning curling upwards looks still like bleacching but the plants is getting more then 300 ppfd
 

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Patriots781 said:
I'm in dwc ph 5.5 ppm 400 week 4 of veg I thought at first it was the light so I turned it down to about 250 ppfd then I still got it so thought I was overfeeding so gave them less nutes did a bucket change still happening wtf can it be from low humidity ? Temps 70s humidity in 40s tips burning curling upwards looks still like bleacching but the plants is getting more then 300 ppfd
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In my limited experience I've had with light burn, it still appears that way to me in your pics, just a slower version of it since reducing ppfd. What meter do you use? I have an app on my phone that I use for as a general guide but reviews show it to be 70% accurate at best.
 
I would say ppm too low. Your leaves are not green and healthy. Show us the roots. Show us the room. I would dump what ever you have in the rez. Start over with ph 5.8 and 500-600ppm nitrogen rich nutrients. What are your nutrients ?
 
250 ppm is really low I would bump it up to 400 again. Your PH at 5.5 is low and I would raise it to 5.8 unless you swing that range and PH down to 5.5 again; in that case you are ok.

My guess here is PH issue or you have root rot. Let's see them roots :)
 
Your humidity needs to be way above 40 for veg too. RH is how your plants breathe and cool off. If your RH isnt in the right range you run into allot of issues with nutrient uptake and burning. Raise the RH in that room and let the girls breathe a bit
 
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