I just got a fluval fx5 filter. But somehow I think it is not very quiet as people said. The engine is kinda like rumpling all the time. I'm not sure if it is because the air trap or not. But it does not really sound like it. So if anyone had experiences about fx5, please help. Is it normal or am I doing something wrong? I use Eheim filter from the classic to Pro2. THey are way way more quiet compared to this Fx5.
