I am a first time grower starting with a small indoor 3x3 grow of Super Skunk. Between weeks 5 and 6 of flower I notice that half or a little more of 1 of my 3 plants has many of the fan leaves turning brown and getting dry. I have always notice this one plant to be a runt much shorter than the other two but now I am not sure what is wrong with her. Everything between the 3 has been the same soil, water, light fertilizer etc… any ideas. I started her on hydrogen peroxide two days ago but not sure what to do next. Pull her all together and focus on the other two that don’t have any signs of this same issue?
First picture is the issue and second is half of her that doesn’t show the issue. Looks to be two of the 4 branches.