I've been running a 72g tank for about a year now using 3 fluval canister filters; a 404, 205 and a 104. I also been using an aquaclear 110 as a little refugium and a seaclone skimmer. I know that the fluvals are nitrate factories and that the seaclone skimmer isn't good at all because I constantly do water changes. I'm planning on putting a 20g tank under the main tank as a refugium and getting a better skimmer. I know it's gonna be hard trying to sell any of my fluvals so my question is, what can I do with the fluvals besides just throwing them out???



