Ah....silence. One of my main goals with my aquarium. I have it in my room and I like a quiet environment for sleeping.
I'm in the process of switching filtration methods on my 55 gallon. I recently got my overflow box I ordered online and am planning on buying the materials and building a sump this weekend. I've been thinking about soundshielding recently too. Eventually I'll have to buy a pump, of course I want it quet, but if it isn't quiet enough, i'm planning on buying some insulation. In my field there's this certain material they use to line engine compartments and generator boxes/covers to pretty much eliminate sound. American Acoustical Sound Insulation is what it's called. They have different thicknesses of course, and it's supposed to be some good stuff. I'm planning on giving that a go if necessary. Also planning on silencing my overflow box if possible. I'll post what I do and how sucessfull it is as I go.
Anybody else doing anything similar or already tried this kind of thing?