DWC, too much Nitrogen? (PICS)

hey guys, plants are finally coming around. quick and to the point...

After i did a rez change on friday, shes looking just a tad droopy/curling down and in since early yesterday...not too bad tho.

wondering if its too much N after the rez change bc roots are white and healthy (although they do smell like fresh dirt, hope thats good!)

heres the details:

- 400 MH, 18/6, 18" above plants (although they WERE 6" lower last night)
- 400 cfm vortex ON 15min/hr
- temp = 67*, humidity = 50%
- water temp = 64*
- buckets are light tight
- 50 lpm air pump, each (im running two) 5-gal bucket gets (2) 4" disc airstones
- small 8" fan always moving air 24/7

Nutes:
- pH always between 5.6-6.4
- using GH gro, micro, bloom, cal/mag, aquashield
- before rez change ppm = 325
- after rez change ppm = 580

Oh, and the dirt pots will be moved outside when weather permits

I think it looks pretty good. Give it lots of light and it should take off. I accidentally mixed a res of floranva at 800 ppm for some small ones like yours and it didn't seem to harm them so I left it like that. If they really curl a little more or look like eagle claws then you could dilute it some.

Ya they're startin to "claw" right at the tips. Ill just keep adding ph'd water as its needed