I think I figured out what my problem was with the hydro plants.

Today my See More Buds DVD came in the mail. Two important things I got out of this movie were to:

1. use foil covers over the rocks to prevent mold/algae growing on the rockwool or the hydrotron rocks.

2. monitor the PPM of the nutrient solution

I spent $250 at the hydro shop today on a nice digital PPM and PH sensor. I caliabrated the sensor and then checked my water. Both plants had a PPM of about 1900 which I guess is way to high.

So today I mixed a batch of nutrients using tap water and GH nutrients at the ratios recommended by See More Buds. The PPM is now around 640 with a PH of 6.5 in both.

I also raised the light about 6" and put the watering system on a hour on hour off timer.

Now I will wait and hope my changes help. I will post more pictures either late tonight or sometime tommorrow.