The 【Filter Cartridge for Tetra Whisper】is a 6-piece set of medium replacement filter cartridges, with each unit measuring 3.5 x 5.5 inches. This aquarium filter cartridge is compatible with the Whisper Bio-Bag External Filter PF10, Whisper External IQ10, Whisper 10i Internal Filter, and TetraFauna ReptoFilter for 20-gallon tanks (90 GPH).

The filter features a four-stage filtration system. It is made of dense dual-sided mesh, providing better thickness and improved filtration. The filter utilizes ultra-activated carbon instead of ordinary carbon, and also includes processed zeolite, which can effectively filter and absorb impurities in the water to maintain a clean water source and a healthy growth environment for fish.

The efficacy of the zeolite component is noteworthy. It can adsorb ammonia, heavy metals, and other harmful components in the water, effectively balancing the pH value to achieve a stable water state. Zeolite can also improve the fertilization efficiency of aquatic plants, allowing your aquatic plants and nitrifying bacteria to grow faster and thrive more comfortably and healthily.

The filter cartridges are designed for quick and easy installation. Simply turn off the filter, remove the used cartridge, and flush the new cartridge under cool, clean water or aquarium water to remove any dust. After rinsing, insert the cartridge into the flushing chamber, ensuring it fits completely.

As a professional in the field of Aquarium Filter Cartridges, we recommend replacing the filters every 2-4 weeks to maintain water quality. This timeframe may vary depending on the number of fish in your tank. If you have any problems or questions, please feel free to contact us for assistance.

The product is available in different count options: 6 Counts, 10 Counts, 16 Counts, and 32 Counts, with corresponding prices of $12.29, $12.29, $19.99, and $49.99, respectively. All versions feature the same four-stage filtration and double-layer thickened cotton, zeolite, and activated carbon components.

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