Update: I dumped out the standing water in the tray, and tried to dry them off all Friday. Finally Saturday morning they had started to get dry, so at the advice of a friend, mixed 6ml/gal Liquid Karma into distilled water, and started wetting the RR's with that. Plants started looking healthier...

Sunday: Decided to put the plants in the bubblers, using the Lucas formula (at 25% strength for now), 5 ml/gallon each of Hygrozyme, Liquid Karma, and Cal Mag. I have my 400 watt MH positioned about 24" from the buckets. 6 plants are looking very healthy, 1 looking healthy, and one that looks like its making a turn for the better. When I pulled the RR's out of the tray, 4 had developed roots through the bottom and sides of the RR, 3 had developed roots out of the bottom of the RR (tap root?), and one hadn't shown any root growth through the RR (but I'm hoping!).