It's been just over a week and those brown fuzzy hairs havent caused any issues from what i can see! The plants that showed those traits are currently the fattest at the moment in terms of nugs and are covered in THC and now the whole plant has slowly started showing brown hairs in a uniformed manor now so doesnt seem to be a problem.. as i near the 2 week mark im going to give a light flush of hydrogen peroxide just incase the browning was due to slight root rot, not sure if thats a good idea or whether a flush would be just as good.