I recently stumbled across your forum and think it's amazing. A pre-made scrubber would be great. I am trying to figure out how to make an external one for my 55 gallon reef, but I'm struggling a little with the location of the scrubber because there is a small window and a picture above the tank and having a scrubber blocking either of the two would not sit well with my girlfriend. Also the tank is not drilled and the stand has drawers compared to the typical open cabinet with doors. So, I am wondering if there is a way to build a scrubber that uses a siphon for the intake and a pump to return the water to the display? Or would that be too much of a hassle to try and find an equal medium?