I don't know if this is a snail or baby mushroom?? It was free floating when I seen it. I took it out of the tank for over an hour and It didn't move. (But in the tank it went to a moon shape so I know it's alive lol) Is it good or bad lol tried to get best pic I could. The one in the cup zoomed in good. The pics in my hand is of it's back and underneath.