Package Contains: Contains 20 aquarium media bags, perfect size, 3.9" L x 3.9" W, enough to meet your daily needs. The mesh filter bag set can create a completely customized aquarium for you to use for a long time

Premium Quality Material: Made of soft yet strong polyester, this pond pump filter bag prevents debris from leaking in. Fade-resistant, the pond filter media offers maximum protection for aquatic life

Effective Filtration: This aquarium filter bag effectively filters impurities and ensures the quality of water, keeping water clear and creating a thriving ecosystem for fish, turtles and aquatic pets

Secure Zipper Design: The mesh filter's top seal zipper completely seals the media while allowing for quick refills and changes. This mesh zipper bag prevents spills and will not interfere with your aquarium setup

Versatile Application: These filter bags for fish tank can accommodate activated carbon, bio balls, ceramic rings, crushed coral, zeolite and other granular media. It can be used with filters, power filters and pond systems