Thanks for the compliments. I'm using a Prism Pro Deluxe skimmer and I went chincy with a power filter. I read about the Tetra Tec "living filter" and decided to give it a try. It's not that special, but there are two factors that I do like, a heater if you choose to use one can be placed in it and the output are directional. I also have a little walmart aqua tech 15 on it. The caulerpa, Xenia and skimmer are doing the bulk of the filtration. I have somewhere around 300 gph of flow on the tank without a powerhead and I have one dead spot in the front right corner.
Dave