YES! I have FISH!..... So, after a long summer of ups and downs, we finally have fish.... We have had fish for several weeks now, we bought 3 pristella tetras and 2 upside down catfish. Then a week ago we bought 2 dwarf gouramis and 3 long-finned leopard danios(lost 1 a few days later). We are running an Emporer 400 filter on a 55 gal tank. Ammonia, Nitrate and Nitrite all 0's. Did a small water change today, looked at my filters ( the pads with the charcoal and the blue pad ) and they were COVERED in a gelatinous slime. I rinsed one out in the sink, and the other two in the tank (I know,3 is an odd number but there was a reason for it) anyway, now the water is really cloudy, but clearing. I was wondering if that slimey stuff is the "good bacteria"? Should I not have rinsed them off in the tank? can someone please enlighten me?