Nice looking stock! I had filter socks on my old 1400L tank and changing and cleaning them every 3 days is exactly what I got sick of. I couldn't bring myself to put them straight in the washing machine filthy dirty and full of fish poo so used to rinse them out first. On top of the hassle of regular maintenance the fact that you essentially lose all mechanical filtration as soon as they clog also frustrated me. A long weekend away or a day or twos negligence or forgetfulness (pretty easy when doing shift work!) and your bio media is catching all the crap. I agre they do provide fantastic mechanical filtration, but for now I thought I'd give the Poret a try and see how it goes in conjunction with the settling chamber. At the end of the day if I'm not happy with the clarity it will be fairly easy to add a tower for them to this sump and start using them.