i just wanted to stop in and say hello, I will be spending some time lurking on your site to gather information. my wife and i are in the process of building a new house in Pennsylvania and i will be building an 8000-12000 gallon marine display tank, i will be using the plywood and fiberglass technique. The display will have 3 4x8 acrylic windows, and be 7 feet deep. I need information on plumbing, sump building, and building a(some) protien skimmer(s). i am thinking Sand swimming pool filters. anyhow, any information would be grately appreciated. PLEASE REMEMBER, IF YOU HAVE NOTHING NICE TO SAY DON'T SAY ANYTHING AT ALL. THIS THREAD IS MORE TO SAY HELLO AND GATHER INFORMATION, NOT TO GET FLAMMED ABOUT HOW DIFFICULT THIS PROJECT IS, THIS TANK HAS BEEN ENGINEERED INTO THE HOME. THIS WILL HAPPEN!!!!!!!!!!!! and Just to answer some obvious questions. The foundation under the tank is poured 18 inches thick, i have a source for 2.5 inch acrylic, and i have a bachelors degree in Marine Biology and Ecology.