Feature:1. [Removal of Harmful Substances] The parasitic nitrifying bacteria can quickly remove harmful substances in the aquarium by physical means.2. [Absorb Impurities] Aquarium filter media can effectively absorb impurities in water, providing cleaner water and living environment for fish.3. [Multipurpose] This aquarium ceramic bio filter media quickly removes harmful substances, nitrates, nitrites, ammonia, etc. from the aquarium.4. [Safe] Fish tank filter balls provides efficient biological filtration and maintains a healthy aquatic environment without compromising water quality.5. [Scope of Application] The fish tank filter balls can be used for both freshwater and seawater filtration, suitable for most fish tanks, aquariums, and easy to use.Specification:Item Type: Aquarium Bio BallsMaterial: Bacterial BallUses: Aquarium, Fish Tank Filtration.Package List:1 Bag x Aquarium Bio BallsNote:Please allow 05g/00.18oz error for manual measurement