Exile, I don't mean to be condescending, but you were wrong several times in that post.
UV's are great for bacteria, but do nothing to parasites, unless the UV is way oversized for the tank (120watts on a 30gal might help).
Nitrosomonas and Nitrobacter (nitrifying) bacteria are not pelagic, and therefor would not be affected by a UV.
Please don't take this as a flame, I just wanted to correct your comments.