Balkh Afghan Pheno Hunt & Preserevation

your male tent looked to be doing the same thing on week 10, I would guess this is a long term issues from under/over watering and something is not rotten in the medium causing all these issues. need to get that under cantonal and stabilized. Best Of Luck!

It's not fusarium, it's more like root rot

wow, no experience with that so no idea on the fungal infection. if about to toss out, maybe lift plant from pot a bit and inspect roots? i would think it would be a clear sign in root zone if it is an infection? you should clear out dead, fallen leaves. this is an opportunity for microbial growth - good or bad. I see dead leaves in pots last 4 weeks in pictures. probably not the cause here, i'd assume. those tall ones look like they started to go downhill after week 7 or 8. Lost their perkineess. anything newly added since week 7? it may have taken a while to build up severity... even anything new (product or behaviour) a week or two before that.