if you can try to drop those temps a bit...try to have an intake and exhause fan..for the exhaust you can hook a fan up to the light hood..suck the air through the hood and vent it out the closet..have another fan bringing in fresh cooler air from another room.
and for the nute burn just give...
if youre gonna join the military, join the air force..army, marines, navy all have the shittiest living conditions and when youre under e-4 youre living with other dudes and sharing a shower...air force you get treated like an adult..
i know with the 60 site aeroflo you can get a manifold to offset the tubes...the res would be in the middle, 3 tubes on either side of the res. but i seem to do ok with the way its set up. afgoo was the strain i grew before this gdp..its 100% indica, has a nice fruity smell..
my gdp turns...
sometimes nutes will stain the roots.. i used to use liquid karma and that shit colored my roots brownish almost black..i thought i fucked up royally! but shit was all good..
what kind of medium are you growing in?