Has anyone ever heard of this media reactor - Nextreef MR-1 reactor? Here's a link to it: http://cgi.ebay.com/NextReef-MR1-Me...hash=item270258341451&_trksid=p3286.m14.l1318 It's for sale on ebay and it looks ok, but i'd like to hear something about it's performance first. So if anyone has one, please tell me how it is. Thanks