here are some pics of my recently added fuge. I used the proclear wet dry I already had as my sump and just added the fuge by putting a bulkhead from the box I built into the sump. The basic issue I had was that my 55s center brace makes the space underneath a whole lot smaller than it looks. You can't even fit a 10 gal under there .... I tried. the clear tubing in the undertank pic caries the water from the sump into the fuge i keep it around 200GPH ....