temp in room is at a 72-76F i use last 2 tsp per gal of tiger bloom and tbl per gal of big bloom and 1/4 tsp per gal of open sesame and i use 1 tsp of dark energy , 1 tbl per gal of pure blend metabolic formula and 1 tsp super nova. ppm is about 1150 and ph 6 , they are in week 2 of flowering so i just change it over and co2 in the room just change from 400 to 1300 about. i started trying to do the scrog but when i saw the grow i had to remove the screen plants was getting to big even today then grown about 1/2 to 1 in. now i have notice some browning not on the edge but started in the mid of the leaf. any idea whats goign on and the plants look like they use up a gal of water or 1.5 gal a day about latle