Zuqqony 8 Pack Small Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filter Small Replacement Filter Cartridges Compatible with Tetra Whisper 3i Internal Filters

Perfect Compatibility with Tetra Whisper 3i In-Tank Filter: Crafted exclusively for small tanks(4 gallons), our small whisper filter cartridge is tailor-made for the (3i) Filter. Its compact size guarantees a seamless fit within confined spaces, delivering robust filtration while maintaining an unobtrusive presence

Effective Debris Capture: Our replacement filter cartridge boasts a densely woven double-sided mesh that excels at capturing even the tiniest particles. From fragments to fish waste, our small filter cartridges for fish tank ensures your aquarium remains a clean and healthy environment for your aquatic companions.

Optimal Replacement Cartridges Schedule: To ensure optimal performance, we recommend replacing the filter cartridge every 2-4 weeks. However, if you notice a decrease in water flow before that time, don't hesitate to replace it sooner. Your aquarium's well-being is our priority.

Easy Replacement: Our aquarium filter cartridge arrives fully assembled, allowing you to seamlessly swap out the old cartridge and install the new one. No complicated assembly required – just simple, straightforward usage.

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