Hey Dave, a few questions of my own:
1. Would the use of a UV sterilizer or Ozone have deleterious effects on the RF system?
2. Does RF require substantial amounts of surface area to operate? IE. Does it require live rock or another substrate (bioballs) to produce significant results thus far demonstrated?
3. How does RF interact with refugiums and algae turf scrubbers?
Edit: Nevermind on the first question, I just found the FAQ.