Has anyone ever used a skimmer in place of a filter sock, just an idea I'm running in my head. Seems everything is good on my setup except surface gunk. Is gathers inside my AIO fijicube box, and just sits at the surface. I have an internal power filter in chamber two, with a sock in chamber one. You think this would work to remove surface scum as it comes in the intake?? Just an idea, I have plenty of surface movement inside display, just seems to collect in the corner where intake is, and in box.