Black Aquarium Fish Tank Pond Sponge Biochemical Cotton Filter Cleaning Sponge

Specifications Color BlackMaterial Biochemical CottonHole Micropore Mesopore MacroporeSize L X W X H 50 x 30 x 4cm 19 69 x 11 81 x 1 57 appr Features ● Excellent water permeability ● Can be used again after cleaning ● Can be cut any sizes as your needed ● Suitable for using in freshwater and marine water ● Cultivate the nitrifying bacteria for biological filtration ● Offers good biochemical and physical filtration effects 1 Micropore ● It can be used in dense medium and big holes ● It is suitable for fish tank and fish pond filtration ● Mainly used for physical filtration and biochemical filtration 2 Mesopore ● It is suitable for fish tank and fish pond filtration ● Mainly used for physical filtration and biochemical filtration ● Use collocation to achieve better effects fish tank with cotton wool fish pond with vine cotton 3 Macropore ● It is suitable for fish tank and fish pond filtration ● Mainly used for physical filtration and biochemical filtration ● Especially suitable for the primary filtration environment with dirty water quality ● Use collocation to achieve better effects fish tank with cotton wool fish pond with vine cotton Package Included 1 x Filter Sponge