Yellowing in middle of top leafs

alext512

Member
Hello,
As you can see in the pictures there is weird yellowing in the middle of some of my leafs. These are leaves at the top of the plant. The picture of the really mangled leaf is of a leaf that looked the others earlier and has turned into that. This is a Jillybean plant, a few weeks into flowering. She is being grown indoors in a hempy type bucket with coco and some perlite. I mostly just feed with MaxiBloom about once every 2 days. I also add a little molasses. I ph the feedings every time, but I use the color drops, not a ph test stick.

Generally, I think the plant is pretty healthy, except for this new development.

Thanks for any help!

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Happycfl

Member
Are you adding some kind of cal-mag supplement when watering? Do you actually know what pH you feed with - I believe a pH of 5.8 is about right for you.
 

BygonEra

Well-Known Member
Kinda looks to me like light burn... how close are the lights to the top of the plant? Is there a fan blowing the leaves around up there?
 
Cal........its locked into the coco till the coco has enough and starts to release it.....when you use coco you should always precharge it with calmag or lime or you will have this problem everytime....they make coco safe nutes that have almost dub the amount if cal to correct this ......i would toss some lime into a watering can and mix well and pour into the coco and that will fix the cal lockup.....goodluck
 

alext512

Member
Kinda looks to me like light burn... how close are the lights to the top of the plant? Is there a fan blowing the leaves around up there?
Sorry, forgot to mention these are under LED's. There is a fan and the lights are about 5 inches from the peak. Thanks.
 

alext512

Member
Thanks Happy and Filthy. I was using cal-mag+ earlier but then stopped when I put into flower. I will add that back into the next feed. Thanks!
 
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