I'll be setting up a 150 gallon reef tank with a ~50 gallon sump, and I'm trying to decide on a protein skimmer. I like the Tunze's small footprint (about 5"x4.5") for my sump as it's going to be a convert old acryllic tank that has two openings in the top that are 17"x6 3/4" which would mean that I could put in the sump without having to make any modifications to the top thus weakening the tank. What do you guys think? Do you have any suggestions for skimmers that might better meet my needs?