Nice Tex, I'm about to put my ladies into the UC from my ebb tables. I noticed though that some of the roots are brown. It seems that the roots that end up staying in the water stay new and white but the ones that are in the air in between waterings end up turning some what brown and being air pruned. Have you noticed any thing like this in your tables? If I remember correctly your flooding every four hours. Are they under a 4,6,or 1000 kw?