AC110 Making Weird Noise
I'm not sure if this is the right thread to ask this question. But I'll post it here for now. I just set up my 55g tank and my ac110 filter is making a very obnoxious noise. It'l like a loud buzzing/humming noise and it stops if I put light pressure on the back. Could this be an issue with the leveling device? What should I try to fix this? Thanks!