I got the charcoal pads anyways cause of water clarity problems and it turns out that the mechanical filtration was working because when I checked some of the fluvals pads they were full.
Overall, the charcoal pads have solved some of my problems(water clarity) and the filter just had to be powered (pushed the thing so it could go faster).
I also just gave the water a good old fashioned water change!
Thanks for the help everyone!