What I believe I am trying to say is that I'd like a tank with built in overflows (predrilled), sump, and all necessary plumbing. The two I've been researching also come with protein skimmers, however I've read that they need upgrading and are rather insufficient. I am currently looking at the Red Sea Reefer 525XL and the Cadlights Artisan II. Thanks again for all the replies, Manny