i'd stop everything you are doing and do this.....RO water.....Cal Mag 200ppm and Grow nutes 200 ppm....ph 5.6-6.2. You've got everything but the kitchen sink in there.

Mr Droopy looks like he is circling the drain there so maybe you shouldn't have named him.

Water him with new mixture as well. I think you dried him up....hopefully not too much.

Good luck.
Weedhound Reviewed by Weedhound on . Can't figure out what's wrong... 3 weeks from bagseed, 1" rockwool cubes (pH buffered) and hydroton, 8" net pots in five gallon buckets with bottoms cut out. Flood & Drain / Ebb & Flow, 40 gallon reservoir. (res temp 71 F) RH = 40% Growroom temp = 75-78 F 250watt HPS light, with two 48" Floro tubes as side lighting, and a CFL for good measure. Rating: 5