So, I have an idea that will probably take me a long time to get it finished, but...
Have you guys heard of the
Pax Bellum ARID Filter?
I have a spare quartz UV sleeve laying around that is for an AquaUV 25W sterilizer. I could run a length of LEDs down this sleeve (or maybe some sort of fluorescent tube???) and mount it inside a piece of 6-8" PVC, plumb it like a TLF reactor, and voila!
Thoughts? Suggestions?