Hi. Recently a few of my goldfish developed some white spots on their gills. I thought it was Ich at first but it is only on the gills. Only a few of the fish have it. I tried Ich medications anyway and coppersafe but nothing has worked so far. Does anyone know what this is? Is this normal for fancy goldfish? My water quality is good. Ph 6.8, temp. 68 F. , eight 2-inch goldfish in a 75 gallon tank. Any help with this would be greatly appreciated. Thanks