I want to use the reefmat. They was one of the reasons I was leaning towards RS. Getting that to work in the WB sump requires some hacking I've read. Not sure why WB makes their sock holders to where you can't just drop in a fleece roller.Yes. But try Reefmat 500 and yes you don't need the glass sump. Rather buy something from Advanced acrylic if you want something fancy/durable or yes Reefcan is an option but too costly for what it is.