The three-dimensional 12D three-dimensional comprehensive filter cotton is a multi-functional high-end aquarium fish tank filter cotton produced by multiple processes, selecting non-fluorescent and harmless raw materials to fish. Three-dimensional honeycomb grid, water blocking, biochemical filtration, filtration of coarse particles, filtration of small and medium particles, interception of fine particles, water blocking and other multi-functional cotton. Can be suitable for a variety of fish tank aquarium applications. Washable and durable, high pressure washing, free cutting, no lint or slag, and other advantages.