Nice grow.
Just a few comments....
Foxfarm nutes you are using are organic....they will stain the roots brownish. I dont doubt you had some rootrot with those rez temps but just be aware that it can be normal to have some off color roots with those nutes. Also, you just cant mix h2o2 and organic nutes....the h2o2 "kills" the nutes.
As Earl has said before, and I have learned myself, 600 ppm is about "full strength" for an aero system, so be careful following the foxfarm feeding schedule...
Seems like rez temps are your biggest enemy.
Getting the pump out of the rez will make a huge difference....that was my main design difference from Earls when I built a Aero Space Shuttle like his.
Once the pump is out, you can run it full time if you like, but its kind of a waste.
I did 30 mins on, 30 off for veg time, switched to 10 on 50 off after.
I know people say do veg for X weeks, flower for X weeks, but you should really let the plant tell you.
I vegged until node 12-13 or until the 8th node gave up the presex indicator, which was around 15-17" high.
Good luck!
