I just bought a new filter for a 10 gallon i have. The filter is a Marineland Penguin Bio-Wheel 100. After I installed it, It immediately made a loud grinding/whirling noise. I thought that maybe it needed to "break-in" a little bit, but after a few hours, it still persisted. It sounds like the Bio-wheel is spinning really fast, but if i stop it, the noise continues. Is it a piece of carbon stuck in the motor? Any advice? Has anyone else experienced this?