my hang on flter.  It went in there a lot the last few months of its life.  One day I noticed a bunch of skin flakes floating all throught the tank.  I can't find the remains though from the eel. Although every time I do a water change, I notice a HORRIBLE rotton egg like smell. Is this bad for the rest of my fish only 100 gal tank?
				
			 
	 
 
		 
 
		 
 
		