I really wish we could reply on the questions lol ...

@JUNGLE_B4RNS he's using RO water that'd explain Ca def. as for purple it's plain P def. Light has nothing to do with it. It can only boost hunger which is happaned and now showing on the leaves all organic shit takes time to dissolve and to be absorbed

Bro… it’s a CaO deficiency from too intense light …. photoinhibition generates random micro nutrients deficiency… mostly magnesium, calcium and iron. Another factor is your petiole and stem showing a deep purple color… sign of light energy exceeding the photosynthetic capacity of the plant… Over amendment would have shown burned leaves tips… But the main problem is more a cognitive dissonance issue where your beliefs are being contradicted…. So just take it or leave it, it’s up to you…

I hit send by mistake............ ..........with a Potassium percntage of 3% and 2% respectively is not ideal........... Get some proper, cannabis specific fertilizers that also contain trace minerals (which neither of the two listed products in your diary do not have) and I am sure things would be better.

Potassium issues too...............using tomato fertilizer and general purpose generic vegetable fertilizer with a Potassium percentage of 3

i agree, it doesn't look like underfeeding due to how dark green the leaf is, but that doesn't mean the entire formula is in a proper balanced, either. It may be less probable but not impossible. Those are valid answers given incomplete information. Some things can be overdosed and cause overly lush foliage while something else unrelated to pigmentation (or less related) could be underfed. Totally viable... i don't see a deficiency of P or K ... P would have other coinciding symptoms. Is ther any blue hue to the leaves? If not, probably not p-deficiency symptoms. That's why i'd lean lockout.. something else is too heavily provided and impacting availability of Ca, therefore a Ca deficience results in the leaves. Symptoms are not discrete. More than one cause can be the root of the problem. You have to use additional info to eliminate the possibilities. if you want to reply to someone, just send them a DM. If it's to argue, please don't send one to me, LOL. I do agree the character limit is too short for questions, but you can also do wihat others have done in the past to circumvent it. Type something out in a notepad app, screenshot it, crop it, and post as a picture. There is no character limit on that.