Blue Ribbon Pet Products ABLPLY7 Polyester Floss Bag Filter Media for Aquarium, 7-Ounce Go to amazon.com Related posts Check expert advices for filter floss aquarium? FeatureBlue Ribbon Pet ProductsPolyester Filter Floss For Fish And Aquatic, Size: 7 Ounces7 Ounces DescriptionPolyester filter fiber scientifically prepared for freshwater, marine and pond filtration. 100% Polyester Filler Fiber 7 Oz.