Fan leaves dying

As long as there is some green, keep going if not done. definitely overfed, but really depends on how this stuff looked as it started. cal-mag is possible, but often gets confused with p/k-toxicities or pH problems. read up and eliminate possibilities before adding anything. Regardless, back off on nutes unless it takes an immediate nosedive. irrigate water only for a week if in soil, less if coco. if you have selected the most likely, do that, if it isn't harvest time by then... likely just going to flush and chop, i bet.

looks alot like nuti lock, best thing you can do is flush it, check soil ph, adjust your water, try for 6.5ph give it some cal/mag as well the rust is specific to a cal/mag deficiency. i just had a gorilla glue lock out on me and not be able to come back. it happens. tame down you nutis and check your ph for the future. also i like to flush with HO2 4% 30ml/gal. kills all the organic stuff flushes out the other and provides those roots with some much needed dissolved oxygen.

Hey :-) Look with a microscope 👌If the trichome heads are about 70% milky and 30% clear, you can start with the flush. If the trichomes are about 70% milky and 30% amber, it is a very good time to harvest 👍🙏🏻 but do not pay attention to the leaves of the trichomes on the buds 👍

Fan leaves dying is part of the natural cycle: those are trimmed so its fine if they look beat up. At 65%, you could start the flush anytime - you're in the harvest window and can add a few extra days to it if they aren't cloudy enough in a week and the buds and small flowers look good.