What could be causing this?

Hey everyone, I’m in day 26 flower using GH flora series. I attached a couple pics of the white widow leaves that are in question. My other plants leaves are a light pale green with red stems. I assumed I was under nuting when I transitioned over to flower. I have since raised the ppm of my nutrient solution. The flowers are looking good and are green around them However I do feel I’m lacking something. Any help would be great.

Growing in coco, 1200 watt air cooled hps

Does this help?

http://www.ilovegrowingmarijuana.com/marijuana-diseases-leaf-septoria/

That seems like it could be the issue. I have noticed this on the white widow prior to going into flower. I will pick off all the affected leaves on the plants. Hopefully this will control my issue.

Any other natural ways to get rid of this? I don’t really want to spray anything on the actual buds themselves.

Overall the plant looks really healthy, lots of colas starting to get frosty. I’m not sure how I got leaf septoria especially growing indoors in a sealed room.

Could this be spreading to other plants? Other plants do not have spots just light pale lower to mid leaves. Maybe a lock of nitrogen caused this...hmmm?

Any more thoughts or guidance would be great thank you

The stems are kind of red as well. Is this another symptom of leaf septoria or do i have a P issue too?

This is bullshit!Not every problem is septoria,get over it and find the real problem.Leaf variegation is normal and does not always mean trouble.

Leaf variegation is a symptom of stress in some strains.

Since you have red stems my guess is you are slightly K and or Mg deficient.

I can tell you that my experience with leaves that are bicolored and hooking equals broad mites. I would make sure to check under the leaves with a scope. Broad mites will make your.plants worthless quickly.