Big crisis this morning, one of Roberts gold fish died. Seen how he had proven he was a keen keeper of fish, dad and son head off to the local pet shop to get a replacement. Many dollars later we head off home with a fish tank kit, a heater, one bag with four tropical fish in it, one bag with a bristle nose cat fish and a third bag with a gold fish and a snail for the origanal fish tank.And a filter for the original tank.. Not until perusing this web site did the huge lack of fish knowledge become evident. Hence the "oop's" For instance, what are those fish floating around in the new tank called? The B/N is great, a fish with character. Will follow any threads to do with them. This is an awesome site folks. We will learn a great deal from it. :roll: Any advice will be welcomed.