Lighter green leaves, what can cause this?
- Thread starter Adi1989
- Start date
JK-DOOR 420
Active Member
Looks deficient, and needs more light...prob ph problems with uptake
Adi1989
Active Member
Thanks Ill give it a go
calvin.m16
Well-Known Member
If possible lower humidity in veg to 60-65% and increase your feed strength with CANNA to 1000 PPM at least in VEG or 1.6 EC (same thing just different scale)
They'll look way better within a few days after increasing your nutrients and lowering the humidity a bit, that high of humidity can cause reduced transpiration resulting in higher feed strength requirements, Canna recommends like 1.6-1.8 EC in VEG you're at around 1.2 EC.
Here's a conversion chart I'd recommend saving.
Cheers.
Wastei
Well-Known Member
800ppm is 1.6 EC buddy... Nobody really uses the 0.64 and 0.7 scale, even higher EC then. Most people use the 0.5 scale on this site.If possible lower humidity in veg to 60-65% and increase your feed strength with CANNA to 1000 PPM at least in VEG or 1.6 EC (same thing just different scale)
They'll look way better within a few days after increasing your nutrients and lowering the humidity a bit, that high of humidity can cause reduced transpiration resulting in higher feed strength requirements, Canna recommends like 1.6-1.8 EC in VEG you're at around 1.2 EC.
Here's a conversion chart I'd recommend saving.
View attachment 5082961
Cheers.
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calvin.m16
Well-Known Member
Lets not turn this into a debate, there are many nutrient companies using the x500 & x700 scale respectively. OP likely doesn't know what that even means, lets hope increasing their PPM from 800 to 1000 stops the apparent deficiency.
@Adi1989 If you notice that the tips start to "burn" when you increase the nutrient strength then you'll want to back it off to normal and that will tell you there is another issue like PH or possibly environment.
Manufacturers Ppm Scale Info
I see a lot of new growers are confused about which PPM scale their chosen nutrient company uses. Or they don’t even know there are different scales. I know I didn’t when I first started. Knowing which scale your nutrient and meter manufactures use could potentially save you from major problems...
www.thcfarmer.com
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calvin.m16
Well-Known Member
Honestly if you want to take the easy route just keep doing what you're doing and when the lower leaves yellow up like that just pluck them off.. lol I only see one plant (the one in the back middle) that appears to have any respectable issue. It's easy to sometimes get too picky with the plants appearance and overcorrect or overreact.