I asked this question maybe a year ago. But I was looking for a bit more information.
I am just wondering if a completely silent filter is actually possible? I am looking for literally no noise. My aquarium is maybe 3 feet from my bed. I have trouble sleeping (which is why I'm awake right now) and I am very peculiar about noise when trying to sleep. I sleep in complete silence.
That said, all my fish died with some illness that I could not cure although I tried. Right now it has no filters running and only has one lone amano shrimp and some snails. :( It's been that way for a year. I feel like it would be fun to have a few fish again, and would be relaxing to watch.
Anyways, I always write a lot. Basically, I am looking into an Eheim filter because I heard they are quiet. I know a lot of people here have them, so how quiet are they exactly? I would probably be able to hear them in an absolutely silent room, no? I know I sound picky, but that's the quirky way I am -- the noise will drive me crazy trying to sleep and possibly even to study.
Edit: The tank is 50 gallons.