Get a load of this!!!!
This was posted on Reef Central. There seems to be a growing community supporting the ATS, even on that site.
"I find the idea of an algae scrubber introducing harmful chemicals to be pretty laughable. I've been discussing mine with the environmental engineers in my office, seems they're used on large scales to clean agricultural run off and industrial heavy metal contamination out of water ways.
Check this page out http://www.algalturfscrubber.com/point.htm"
This page link really says it all. Look at the nitrate and phosphate filtration capacity they're getting! And what about removal of all those toxins, and we're talking about industrial pollutants!!!