I have one not in use right now, I was thinking of adding it to my 170G. Currently it has an fx5 with matrix and scrubbies and a small sump (around 30G or so) with bioballs, scrubbies, and some matrix. My levels are just fine, but I wouldn't mind a bit more clarity. I understand the polishing pads for the fx5 are a loser because they clog fast I'm told, but I was thinking of putting pads or floss in the 404 and adding that. Will that work, or are canisters not great at mech (I've heard this from various people). My tank is eurobraced and I don't really see an option to add hob's, and frankly the water isn't cloudy enough that I'd bother with that anyway...but if the 404 would help me with clarity I'd try that.
Or I could just fill it with biomedia and add it, if the floss/pad idea won't work.
Or I could just fill it with biomedia and add it, if the floss/pad idea won't work.