Tetra Whisper Bio-Bag Small Filters

Perfect Compatibility with Tetra Whisper 3i In-Tank Filter: Our small whisper filter cartridge is crafted exclusively for small tanks (4 gallons) and is tailor-made for the (3i) Filter. Designed to fit seamlessly into confined spaces, it delivers robust filtration without taking up valuable tank real estate.

Effective Debris Capture: Densely woven double-sided mesh ensures our filter cartridge excels at capturing even the tiniest particles. From fish waste to fragments, our small filter cartridges maintain a clean and healthy environment for your aquatic companions.

Optimal Replacement Cartridges Schedule: For optimal performance, we recommend replacing the filter cartridge every 2-4 weeks. However, if you notice a decrease in water flow before that time, replace it sooner to keep your aquarium in top condition.

Easy Replacement: Our aquarium filter cartridge arrives fully assembled for simple and straightforward usage. Just remove the old cartridge and install the new one effortlessly. No complicated assembly required.

Crystal Clear Water for Your Aquarium: Equipped with densely packed filter cotton, our cartridge captures various debris and fish waste effectively. The grid design ensures complete contact between activated carbon and water, achieving optimal deodorization and water purification.