My Tank has been smelling like BO or sweat for a few days now, each day it gets stronger. Regardless of whether I do water changes. I've been doing water changes every other day but I now do them every day so the smell isn't too strong. Today however, while doing a water change. I noticed that one of the ornaments I had in the tank had green stains on it. I took it out of the tank and it absolutely wreaked. My tank vaguely stinks now and I'm pretty sure the ornament was the source of the smell. It's out of the tank sitting in hot water now. Should I put it back in after I wash it off? I was thinking of buying a new one all together just to he safe. Probably would be mention worthy to note that I'm three weeks in my tanks cycle process.