@crimseonecho y is it you always have to try and be little ppl and Q everything they put up. You have your ways and ppl have there's. Real researchers, would you stop. You are a Google grower at best.
Anyways. GrowingG I gotta go with.
You are in DWC and going through your grow. Your plant was given everything it needed. Enough N throughout the grow you have given. I think ppl tend to forget once a plant reaches its end of life cycle you start to see what you are seeing, fade, die off, coming to the ends of her energy use. And what you are seeing in effect in wear and tear. You see it all over the world, shit gets old and comes to end of life. + with DWC life cycle tends to be even shorter and grows can be up to 30% quicker.
She's done and looks totally normal to me pal. Really I don't care anything but a solid grow.
Congrats.