Right now i am running a bio-wheel and a protein skimmer. I would like to get all of the stuff that is hanging off the back off of my tank so iam thinking of switching to a cannister filter then having it flow into some sort of DIY refugium. would i need an overflow? i would like to pull the water from the display tank to the refugium using the cannister filter. I still am in a state of confusion how to get this to work so if anyone has any ideas please shoot me your thoughts.