Thank you very much, here is what's going on. I gradually cut the water. Went from 3 hour intervals/15 minute duration to 4 hour intervals/10 minute intervals, then to 5 hour intervals/10 min duration. yesterday I went back to 4 hour intervals and here are some pics from about an hour ago.

The leaves at the bottom are all starting to yellow and are not recovering from the droop. The leaf tips at the top are yellowing just a little bit, right at the tip. A few leaves have some brown spots, maybe 3 or 4 leaves total and 1 or 2 spots on them. The vertical growth seems a little slow, I'm on day 27 from seeds and they're 6 inches tall or so... the space between each new growth on the main stem in really small, and a lot the branches seem to have new growth on them too. Do they need more water?


400w HPS Light is about 20 inches from top of plants.
2 daytime CFL's are 3 or 4 inches away
Temp: Light on-68-77
Light off - 64-70
pH is 5.5-6.0
ppm is 585 (the RO water from the store was 120 to start) DO I need to increase this???
Technaflora nutes - Boost, Grow, Thriva Alive red, MagiCal, Sugar Daddy

Just added Mylar too