I would like to create an overflow box that will go to a wet dry filter or a sump/ fuge. I have been looking on info or instructions on how to create an over flow box and how it works. I have been looking into HOB skimmers but I am thinking it would be more beneficial to create a over flow to sump to put a skimmer in. I have been looking online and havent seen the exact info I am looking for. Any help/info is appreciated!