I have the 2 marineland penguin 200b power filters (up to 50 gal
) on my 55 gal
tank. If I keep the water level up they are nearly silent.
Plus as I stated in another post I am away from home frequently for work, and water changes can be less frequent than is recommended. I never have a problem with my water condition. (Even after a 10 month stint between water changes)
Now I am not advocating this filter so you can get out of doing the water changes that are needed for the health of your fish, but I think this is a great testimonial for these filters. If you want silent then go with a canister (I hate mine it is a pain to clean)
Agree Whisper filters are junk.