I have a 70 gallon reef in my bedroom, but when we had our house built, I had a small room built behind the tank that houses all of the mechanics. I hear nothing but the water falling into the overflow. I was able to design our house so that the tank in my den and the one in the living room have the sumps in the basement, so I also hear nothing from them either. Maybe you can put your tank against a big closet so that the sump is inside of the closet. The server is busy now, so it won't let me post my response, so I'll babble on.......how about those Red Wings....... Anyone have a telescope out there? I just got a 12" Meade....... I think I saw a speck of dust on the moon......Most people just stop visiting a web page, they don't announce it like L.O.T.R. (must have something to do with genetalia size)