HELP! Hydro DWC plant in desperate need of help

I have a month old Big Bang plant. I am using BC Boost and Grow, only like 1 tsp of boost and 1/2 tsp of grow per gallon. The plant has looked progressively worse the past week... the brown spots have steadily gone from up the plant. There is some mild root rot but i have h202 in there and have seen much worse before so that shouldnt be the main problem.

When I set up the net pots, the rock wool bit too high up, it usually stays dry at least on top unless i manually put a little water up there, could this be the problem? Thanks for the help!

She is hungry you are not feeding enough
I would up the dosage to at least half strength but you could get away with 3/4 strength
Mix up a new mix with at least 7.5ml of BC Boost and 3.75ml of BC Grow

Awesome thanks! I have some problems with nute burn so I was trying to avoid that, guess I went a little to far lol

Mag deficientcy, up the nutes!

Go check out my journal, i am using BC nutes as well, got the mixes down pretty good now.