So..... I've been struggling (for about a year) with trying to find to correct recipe for jacks 321 system in my rdwc. I'm always running into leave burn or deficiencys. Usually when I switch to 12 12 all my problems start to show and the leaves get hard and brittle. I've tried 3.6, 2.4,1.2 but now I'm on 3,2,1.1 which is fine for veg but not flower. I constantly monitor my ph in the range of 5.8 to 6.0. Chiller is set to 66°F. The only other thing i use is orca or tribus. When i contact jacks they tell me stick to the full strength 3.6,2.4,1.2 (which is tooo hot i believe). My EC is 1.8 when i mix 3,2,1.1 but after a few days of the plants lowering the water level the EC rises to 2.0 (then i switch out the nutes). I've played with the ratios so the EC doesn't rise but then i get massive deficiencies. I have a veg tent and flower tent. The flower tent is on day 54 since i flipped to 1212 but the leaves started to look this way a few weeks inView attachment 4759408View attachment 4759409View attachment 4759410View attachment 4759411View attachment 4759412View attachment 4759413View attachment 4759414View attachment 4759416. Here are some current pics. Please help! I just want healthy plant's