I decided it was time to clean my tank and I also noticed that I hadn't seen my black molly all day which is odd. So I was somewhat prepared to find him dead somewhere in the tank. As I was taking the fish and ornaments out I realized that the water stank really bad, like gagging bad! So I knew for sure he was dead in there. Well, I found him in one of the big shells I had put in there for decoration. This happened to another fish awhile ago, so this time when I put the big shells back in I made sure they were filled with sand so the fish couldn't go in them. Well somehow the sand got out and the fish got in.
Anyway, now my tank reaks so horrid and I can't get rid of the smell. I did a 60% water change and changed the carbon filter, but it still stinks. Is there anything else I can do or should I just wait it out and eventually the smell will go away?