Maintaining a clean and crystal-clear aquarium can be a real challenge. That's where the Tetra® brand steps in with its innovative Whisper BIO-Bags filter technology. This makes aquarium upkeep a breeze and ensures your fish enjoy a healthier environment. These disposable filter cartridges are a cinch to use and are designed to keep your fish tank in top-notch shape. The super-activated carbon efficiently soaks up discoloration, pollutants, and unpleasant smells. Meanwhile, the thick, double-sided mesh effectively catches debris and fish waste. Here are the key features: convenient and easy-to-use disposable filter replacements, activated carbon that absorbs discoloration, contaminants, and odors, double-sided dense mesh that traps fish waste and debris, and compatibility with Tetra Whisper Power Filters 10, 10i, E, J, Microfilter, PF10. Available sizes include Medium Single Pack and Medium 3-Pack.


Using your Tetra Whisper Bio-Bag Filter Cartridges is easy. First, turn off your Tetra Whisper Power Filter. Open the filter compartment and remove the old cartridge. Place the new cartridge in the compartment, making sure it fits snugly. Then, turn the filter back on. It's that simple! As for maintenance, replace the cartridge regularly. For normal use, a single cartridge can last a few weeks, but this may vary depending on your tank size and the number of fish. If you notice the water getting cloudy or smelly, it might be time for a replacement. Also, always keep the filter in a cool, dry place when not in use. Make sure to check the compatibility of the cartridge with your filter model before purchasing. If you have any other questions, feel free to contact Tetra's customer service.