Here's the setup....
Ebb and Flow 15 Gallon reservoir, plants suspended in 3" netpots in lid. Pots filled with rockwool macroplugs and hydroton.
Floods every 3 hours for 10 mins during light.
AN nutes currently at 5-2.5-2.5, distilled water
PH at 5.8
400 HPS at 18in, 18/6
Bubbler in reservoir
Bagseed...

I have two plants which are slightly taller than the rest and have a larger root structure. The leaves are starting to wilt and curve downward. I can't figure out if it has to do with temps, nutes, feeding schedule or what as the other plants seem to be doing fine. Any help would be great, thanks