I put this up for some1 as this showed up in my ganja runt about 10+ days into pre flower or maybe more. I had fixed it awhile ago I just pult it to show an iron (fe) def.
Look up how to fix iron def with whatever you have.
That's my suggestion anyways. Hope this helps.
Good luck.
Sorry guys. But I'd have to strongly disagree.
It's IRON def by the looks of it.
As it shows up like that with due green vains and all, look it up and you'll c it.
Anything with bloom or micro should have iron, it'll read as FE.
Good luck.
From what can be seen in the photos, the plant looks very good; it's possible that at this flowering stage, some leaves may turn yellow.. Do you control the pH of the water?