Keep your aquarium clean and easy to maintain with Tetra Whisper Bio-Bag Medium Filter Cartridges. Mechanical and biological filtration are essential to keep your tank clean and healthy. Tetra Whisper Bio-Bag Medium Filter Cartridges effectively trap particles that can be harmful to fish and cultures beneficial bacteria, removing odor and discoloration for crystal clear water. It is disposable and part of the Whisper Power Filter Package.
Convenient, easy to use.
Traps even the smallest particles, nothing gets past this filter.