Help kids may be dieing

The photos DO help Mr M....thanks. You know my numbers never go above 1350 during my whole grow and from the looks of your they ARE overnuted and unhappy looking.
There are two things I think you need to do and they are keep your ph in check (between 5.6-6.2) and keep your ppms lower than 1000. I would drop your number from 1200 to 800......you need to give them more water than food at this point. My hydro man usually has me drop the ppm in half (to about 600ppm) if my plants are sick......it will ease the stress and help them recover more quickly.

sounded like this all happened immediately after going under your 400-watt lamp, I would suggest you are too close to the lamp, and experiencing light-shock and/or bleaching ... something to consider ... :smokin:

Reaper is right about moving them away from the lamp ....at least while they are ill....less stress is always better for sick plants...good tip!

they were 3 feet from the 400w, i moved them 4 feet away now. Should i just put them back under a floro? They still dont look good, i will keep hopeing. Got the PPM down to 900 and am going to take it down to 750 or so tonight. thanks for all the help.

No 3 feet from a 400w should be plenty......just take your number down and watch your ph......that's hydro nursing!! ;)

All you can do at this point is lower things and wait.....sometimes they recover from overnute but sometimes not.