Manchas en hojas

Water sprayed on them as others side. Humidity levels. Could be a lack of K. Could be lack of MG could be the strain and pheno itself that fades during late flower. Some fade in weird ways that others day. It can vary strain to strain and sometimes even pheno to pheno of same strain. I seen you done harvested this but would you please select me as the answer I'm trying my best to win grower of the month contest I would really appreciate your support growmie. 😊 please and thank you 🙏

Las 3 primeras semanas de floración tuvieron unas temperaturas un poco elevadas. No las he rociado en floración en ningún momento. Si, tienen ventiladores constantemente moviendo el aire por la zona inferior. Y también he notado que las hojas de la zona inferior se han ido cayendo poco a poco

Looks like too much nitrogen in flowering and this could be ph related. 6.2 is a little bit low for a soil grow. Or you have sprayed them and light burned the leaves as it was magnified through the drops. It also looks like from discoloration a bit and burnt straight tips it was wanting more potassium at one point. You are extremely close to done, and I would not stress over it. Just check your numbers everywhere and coast to finish now for last 2 to 3 weeks.

Did you spray them with water, foliar nutrients, or something while the light was on? Is it only there or everywhere in the lower leaves? I hope is not Leaf Septoria, try to make your humidity 45%

First you overfed her with nitrogen, clawing leaves, from look not so dark, so maybe low humidity and high temps made it look worse. Looking at those spots i have only one option, mechanical damage, you have very strong wind inside ? Never seen round, yellowing spots. Think its damage.