So I decided to do a little cleaning today. As I was scraping the algae from the glass I noticed nothing was coming out of my canister filter. I know a canister isn't the best thing to use but I only run filter floss in there and I change it once a week, it keeps the water nice and clear. Anyways I turned it off two days ago when I feed everyone. Not thinking anything about it I plugged it back in. The first thing to shoot out was about 20 copepods, I was thinking "Awesome I should do this more often." Then as I am watching the fish eat up I start to smell something. I look around to see if my dog was close but he wasn't. Sometimes he is able to make some pretty nasty smells. The smell got much stronger and a lot nastier. I stuck my nose up by the rim of the tank and oh boy, it was bad. So I turned everything off, scrubbed the filter, did a 10% WC, and cleaned up my skimmer. I am going to do another 10% once my RO unit makes it. Has anyone else ever done something silly like this? lesson learned - Check the filter after feeding and turn that sucker back on!