Thanks man.

I looked a little closer at the plant and right where the stalk goes into the rockwool it has turned black and really thin. A few weeks ago I dropped something on it, but it didn't seem to hurt it at the time. I guess it did. It's just about dead now.

Thanks for the advice. That's exactly what I did before I read your reply. I went to distilled water, 5.8ph, 480ppm. I'm using gh flora series and went with a 1/4 solution. The other plants have perked up nicely and aren't curling under anymore.
Mauisurfer Reviewed by Mauisurfer on . Newbie needs help!!! One plant is dying... Hey gang, I recently set up a closet grow room. It's a small area. I'm using 150w HPS with a DWC set up. I planted Bubble gum and one plant just took off. It was 4x the size of all the other ones. And now, it's having major problems. At first, the leaves started to curl. Thinking it was a magnesium deficiency, I foliar sprayed it with epsom salts. That just made it droop. Now it's turning yellow and the leaves are drooping and curling all over the place. I was running it at a 6.5ph Rating: 5