8D Aquarium Filter Media 8-Layer Filter Pads Bio Sponge Foam for Fish Tank Pond Feature: Our 8-layer filter pads for aquarium uses the latest Nano bio sponge filter and Fiber bio sponge filter, which will not produce cotton fibers and particles, maintain good water quality, ensure the safety of your fish. This 8-layer thickened aquarium filter pad is the best choice for aquarium filter floss.  Our filter pads for aquarium has 8filter media: 3-dimensional mesh cloth*2, Ultra high precision cloth*2, Activated carbon cotton*2, Nano bio sponge filter, Fiber bio sponge filter. The 3-dimensional mesh cloth will trap larger particles, the ultra high precision cloth will trap fine particles, Activated carbon cotton, Nano bio sponge filter and Fiber bio sponge filter will filter out very fine impurities and germs. NO DOUBT, this is your fish's favorite water.  Our aquarium filter pad is made of durable Nano bio sponge filter and Fiber bio sponge filter, and then fixed by two layers of ultra high precision cloth, and finally two layers of three-dimensional mesh cloth are glued and molded with high-strength environmentally friendly resin. This aquarium filter floss has the best strength and is easy to clean. It can be cleaned multiple times, the same as in the video.  Aquarium filter media can be cut to any size, meet all your requirements and save more money for you. Our aquarium filter media is very suitable for freshwater or salt aquarium, this aquarium filter floss can be used as a fish tank accessorie, pre-filter for wet/dry filters, sewage tanks, tank filters, reef tank, pond, fish and vegetable symbiosis systems etc.  Size: 40x30x2cm,50x40x2cm, Color: Blue  Package include: 1x 8D Aquarium filter media