Rio+ 50 is noisy!
Since I just broke the impeller shaft of my filter, I decided to use a Rio+ 50 powerhead in the meantime to create some water movement. It's the first time I use it, and man is this thing noisy! In my reef I had powerheads 10 times more powerful that you wouldn't hear beside this one.
I'm just very amazed at the noise it makes, I can't imagine someone having one for regular use in his aquarium.
I have 2 of these Rio+ 50 and both are noisy so it can't be a defect...