trying to get back into the reef hobby. Moved to a much smaller house and don't have tons of room on the main floor, but still want to have a decent volume of saltwater to make it work well. Only think I have room for about an 80 gallon display tank, but want to put a large sump and refugium down in the basement where I have nothing but room. Sump and refugium would be about 8-12 feet directly below the display tank. Any suggestions on pumps or any problems I may encounter? Ideas?