Description
xKeep small tanks clean with ShuRex XS replacement cartridges
Maintaining a tiny freshwater world can be simple and satisfying. ShuRex delivers a practical 6-pack of XS replacement cartridges designed for Whisper Extra Small filters and compatible with AquaCulture kits up to 3 gallons, as well as Top Fin EF-S models and other compact HOB systems. Each cartridge measures 2.2" x 2.2", a convenient size for a wide range of nano tanks and compact setups. If you’re caring for a betta, a nano community, or a dorm-room aquarium, these cartridges offer a familiar, reliable option to help keep water clean and viewing enjoyable.
Three-layer filtration that supports clearer water
The design pairs a double-layer microfiber cotton with an inner activated carbon layer. The microfiber captures solid waste and debris while the carbon helps reduce odors and discoloration, contributing to water that looks and smells more natural. This combination is intended to support a pleasant viewing experience and a more comfortable environment for your aquatic residents.
- Six cartridges per pack provide a convenient, ongoing supply for routine maintenance
- Compatibility with Whisper XS, AquaCulture kits up to 3 gallons, Top Fin EF-S, and other small filters
- Compact 2.2" x 2.2" size fits a variety of small filtration systems
Easy installation and practical maintenance
Replacement is designed to be straightforward and tidy, with minimal fuss so you can complete a cartridge swap without a big mess or wet hands. If you notice a drop in water flow, replacing the cartridge every 3 to 4 weeks helps maintain filtration performance and tank clarity. The 6-pack provides a long-lasting, cost-conscious way to keep your small tank running smoothly.
- Simple, tool-free replacement for quick routine maintenance
- Regular changes support consistent flow and water clarity
- Six-pack offers a half-year supply for steady upkeep
Real-world use and value
Ideal for compact setups—from dorm rooms to desktop nano tanks—these cartridges help you enjoy a clearer aquarium view and a fresher-feeling environment. While individual results vary by tank and bioload, ShuRex XS cartridges present a practical option for steady, periodic care of your small freshwater aquarium.
FAQ
Q: Are these replacement cartridges compatible with my AquaCulture kit?
A: Yes. They fit Whisper XS, AquaCulture kits up to 3 gallons, and Top Fin EF-S; verify by checking cartridge size and filter model.
Q: How often should I replace these cartridges?
A: Replace every 3 to 4 weeks if you notice reduced water flow or changes in water clarity.
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.
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