I don't have any pics right now but here is the deal.

I have been growing these for about 15 days and they were doing fine. Then early this morning i noticed yellowish veins on one of the plants, this was on the entire plant. Along with that, I noticed that on all 3 plants the leaves were curing down and had a bit of a bubbly texture to them, as well as yellowing in the center but nice and green everywhere else, this is only happening on the very top cola area and the first node below it, of the plants. I have diluted the nut. solution w/ 2.5 gallons of pure water (10 gal res.)

I am running a ebb&flow system, 30 minutes 4 times a day when the lights are on. I tested the PH and it was around 5.8. I have a 250w HID about 18" off the tops of the plants. Using GH nutes at specified amount, I don't have a PPM meter. The water has two 12" air stones in it. Two 80cm fans venting air in from the bottom and two 80cm fans venting air out from the top. Temp usually doesn't above 83, I try to keep it around 75-80. The room is 4'x2'x5' and is covered in mylar. Let me know if more info is needed and i will do what I can. I will try to post pics in the morning.

All of the plants perked up this morning and are doing great so it was nute burn.

Thanx!

Glad you got on top of that; nutes probably kill as many plants as they help, LOL.

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that sounds like what i had and people said it was ph lock /out of range ph under nuting aparantly