Been looking at Sponge filters. I'm moving into a bit smaller apartment and instead of having a completely separate room I can put my tanks in, I'm have to put them in the same room as either my tv or my bedroom. So wanting something that's quieter than the over the back filter I've been using. Is a sponge filters a good filter? I assume it's quieter than over the back but have people on here had a good experience with them?