Wilting girls

[macster]

Hi guys maybe someone can help.I've got a number of plants under 2 1000 watt lights. Ive had a problem keeping my nuts(salt) level down as I made the mistake of not cleaning my hydroton properly and as a result the lower level leaves have all yellowed. I think I've licked this problem by changing the res and adding clean water diluting the nuts.
Most of the plants are doing well aside from 2-3 girls which are wilting badly, I've flushed their pots ph is reasonable constant at 5.8 - 6.2 temps are 80 degrees plus or minus 3 degrees my system is continous drip there's no sign of bugs on the plants any ideas guys
Macster

 

[macster]

http://www.icmag.com/gallery/data/500/9451100_0037-med.JPG

 

[macster]

If that link dosn't work.she in my gallery 2nd picture in, the first is the plant next door to it

 

[macster]

Here we go, I did'nt know how to do it

 

[MTF-Sandman]

What's the res temps, RH%, nutes and PPM, PH, water source (well, city, RO, etc), watering schedule and ventilation? The more info you provide on your setup, the better the help you'll get...

 

[macster]

Hi Sandman.
Res temp about 75-80
nutes = dnf and running 1600 ec
water souce is city ec before nutes =3
watering is contineous drip into hydroton
9x13foot room temp between 75-85 f

 

[macster]

there's many other plants that are all ok, just 3 plants wilting like this