Lightbulb moment.... LOL
I got it, yippee!
I am really doing something similar without even realizing it...
I have 2 deep culture tubs that I dont have any fish in, but everytime I clean a filter, and I clean the filters in the tub pond with the tilapia and crays alot, due to the bag of hanging grass and the grass I feed the crays gunks up the filters pretty quickly.
The lettuces love that stuff, so I guess I will add some worm tea to the mix and see if things really go crazy under those lights