My 120g had a Fluvall 205 for biological, the tower was 2 levels media and the top level was a few layers or filter pad, then I had a Marineland 350 with my carbon elements for mechanical filtration with a pair of biowheels. One filter rated to 45g, another rated to 75g, everything was always perfect, plus with cichlids and turtles and other aquatic reptiles, 50% weeklys are pretty much rule of thumb.
No is my answer. The size of filter isn't always that important