Thanks for the advice, like I said I have never built one but my local fish shop has there's set up this way except the skimmer and fuge are reversed, so the skimmer then the media and then do the fuge after that should be my power head area???? By the way this is the dimensions I have to work with W 10 1/2 x L 34 1/2 x H 16. The length and height are negotiable, the length can't go any longer then that though, the height I will have about 10 inch's to play with so that way I can do work inside the sump and remove anything I need I also know i have to hook up a light for my fuge