Why is this happening?!?

Ok so my plants were doing so well! and then one of them the leaves started to fry, so i freaked out and thought it was nute burn.
I flushed all of the pots on all of my plants with clear/acid water (i dont know what it is but my dad is a flower grower and they use it to adjust the PH levels of the water here at the farm. We have high PH well water, it was recomended.
Anyways up until now i was using straight well water but someone told me i would be getting salt build up so this was the route to go.
After i flushed they became droopy but the next day were perfectly fine. I havent watered since, but the pots are still very wet so i cant feed or anything until they dry out.
Now this is happening and i dont know what it could be.... Lack of N? light bleach? what else could it be. Please help i really want them to be healthy again!!!

The temps are around 86 with lights on and the 400W HPS is about a foot from the top. I have a fan blowing constantly on the tops of the plants so they aren't getting too hot.

Bring your lights up 6 inches and watch them grow, also get your ph to 6.5 and add One cap of Hydrogen Peroxcide per gallon of water/nutes. That will help with any over watering and also add oxygen.
ANother thing Molases, 1 tbls per gallon once a week in veg and 2 tbls per gallon in flower.

Your plans will appear more pale if they are over watered. They will be fine.. try and fined a NPK that is designed for those using well water. And a pH of 6.4 (I found to work best with MOST strains) Except outside stuff-around 6.8 seems good for that.

Alright thanks so much guys, i will raise my lights tomorrow and add the peroxide next time i water. I just set them into flower today. I wanted to give them a dose of 14-0-14 before flower but was running out of time. Will giving them 14-0-14 the next time i feed be ok just to green them up a little? and then use some flower nutes the next time i feed?

Well you want to have a transition feed from veg to flower.. your NPK should be fairly equal such as 7-9-8 than go to your 1-2-3 (4) raitio feed program. In veg you are 3-2-1, transition 1-2-1 and flower 1-2-3 (4).. Know what I mean?

Go with 2-8-4 for the first 4.5 weeks then give a feeding of 5.0.0. (Amino Aid) then back to 2.8.4. that should keep them green throughout. Oh also you can try Extrme Serene, It has kelp in it and really greens them up.
In my album I have all my veg products check it out... page 2.