Description
xCrystal Clear Water, Odor Control, and Simple Maintenance
Elevate your freshwater or marine aquarium with the Tetra Whisper Bio-Bag Large Filter Cartridges. Designed to work with your Tetra Whisper water filter, these cartridges strive to keep water looking pristine and smelling fresher, while staying straightforward to manage in a busy home setup.
What makes these cartridges stand out
Each replacement uses a dense dual-sided mesh to catch debris and fish waste, helping maintain a visually clear tank. An Ultra-Activated carbon layer targets odors, while the color-coded design helps you remember the right size for your filter model. The cartridge arrives unassembled, offering a simple path to a customized setup without tools.
- Crystal-clear water through efficient debris filtering and carbon adsorption
- Odor and discoloration reduction for a calmer aquarium appearance
- Easy assembly and effortless replacement to fit your routine
- Color-coded sizing to match compatible Tetra filters accurately
- Monthly change recommended, or sooner if flow slows
How to use and what to expect
For best results, insert the Bio-Bag cartridge into the appropriate Tetra Whisper filter and secure per your model’s instructions. The large size fits Tetra Whisper 20, 30, 40, and 60 Power Filters, plus 20i and 40i Internal Filters. If you notice slower water flow, replace the cartridge promptly.
- Verify you have the correct cartridge size for your model (color-coded)
- Replace monthly or sooner if flow reduces
- Rinse or inspect new cartridges before installation if recommended by your filter
Since 1951, Tetra has offered a broad range of fish care solutions, from food to filtration. This line aims to provide reliable, straightforward maintenance that fits typical home aquariums, helping hobbyists keep fish and plants thriving with less guesswork.
FAQ
Q: Which Tetra filters do Tetra Whisper Bio-Bag Large Cartridges fit and how many are in the pack?
A: The large cartridges fit Tetra Whisper 20, 30, 40, and 60 Power Filters plus 20i and 40i Internal Filters; pack includes 12 blue cartridges.
Q: How often should I replace the Bio-Bag cartridge for best results?
A: Replace when water flow slows or on a monthly schedule to maintain clarity and odor control.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- Choosing a selection results in a full page refresh.
