Hi, all!
I have flowers in the middle of their 10th week (day 66). And most of the leaves showing signs of decay and spots just like something feeds on them. Also, it has black spots on the edges. I have a suspicion that it might be a root rot that infected my system on the second week of growing and now it came back. Even though I treated roots and it kinda helped to go through veggie and flowering up to this moment the disease appeared again.

Did anyone encountered this before in the flowering? Can I treat it somehow safe for buds?