Hi, Chris. We have been running an SR9 on one of our systems for a few months now. It is not the most efficient skimmer on the market by any stretch of the imagination but it is a very good value for the price, very easy to set-up, and very low maintenance. It supports a 200 gallon heavily stocked and fed propagation system with no problems whatsoever. We recommend the SR series skimmers without reservation. If you are looking for an ultra high efficiency skimmer, go to
www.myreef.com and Mr. Daiss will build you the best that money can buy (reasonably priced for what he makes) HTH