So I found @Paul B brine shrimp feeder through a google search and had pretty much all of the materials laying around except the mesh. I don’t have a scrap ro membrane nor does my wife own any hosiery…..i do however have some different types of media bags and mesh fabric on hand. Does anyone know off hand what micron is going to work best? I know the brs media bags are 200 micron. I also have some red sea media bags that came with filter cups which are 225 micron. And I’m pretty sure the 50 micron material I have for diy pod sieves is too small anyway. Any help is appreciated!