Lemon OG

It looks like yellowing off to me. The buds and rest of the youthful leaves are green and look great. At week ten of flower it’s normal on some plants to do that by yellowing and dying off. It’s where the plant isn’t taking the nitrogen it use to intake. It’s telling the plant it’s time to swell out pistils for pollen and finish up. By the amount of them yellow and reddish tones I see, you got about two or three weeks to go till harvest, good luck

I have gave them to many nutrients and maybe u haven’t mixed the nutrients properly and had a bad ph. Ur plant takes up different nutrients better at different ph levels so it good to switch between 6.4 to 6.0 to 6.2 and mix the nutrients properly and make sure water is room temperature before watering and after u mix ur food never leave it over night ur ph levels will change!!!

Hello i am agree with Dasboof you have potassium deficience and calmag also. So now you must make a flush . you can do it with just water or you can use an additive like florakleen to flush your plant. Then give half dose of nutrients. You can add fulvic blast or enzym+ it is a good idea because it will helps your plant to recover sooner. Good luck. Bye