Hi guys, I bought an Aquaclear 50 from petsmart a few weeks ago, and I really like it. However, it is pretty noisy compared to my old whisper filter. The fishtank is in my bedroom but I really only notice the noise at night when there is no backround noise. The noise isnt real loud but enough to annoy me. Today I took the impellar out and cleaned it in water but no sound difference...I'm guessing this is normal and I should return the filter?
Tim.
Tim.