I've been using a marineland bio wheel filter for a long time but I recently took out the bio wheel. I wanted to switch to the aqua clear because the bio wheel filter is noisy and has a few problems. Today at the LFS, they said I couldn't use an aqua clear and that they are only for freshwater. The employee then tried to sell me a sump and a protein skimmer claiming that is the only filteration that works for saltwater and I absolutely have to have a protein skimmer. I have had no problems using HOB filters with my tanks for all these years, but can anyone recommend a good "quiet" HOB filter? The tank is in my room and my bio wheel filter has been keeping me up at night :wall: