I am starting a small indoor system, and I have kept worm bins for several years and used compost tea on plants. Does anyone know if making a compost tea, and soaking hydroton in it for a while, then rinsing, would help establish a healthy bacterial population? Some sites have mentioned nitrosamonas as one species commonly in vermicompost.
I too would be interested in your results. I used it prior to installing my vertical towers and didn't see any major change... But I have to believe it helps. I use it in my hydro system for two purposes: 1) it cleans my lines (I have no earthly idea why) and 2) my plants love it. Obviously I started with #2 as my focus and discovered 1 along the way.