About This

• Perfect Compatibility with Whisper & ReptoFilter Models : These medium cartridges are engineered to compatible with Tetra Whisper Bio-Bag filters (10i, IQ10, PF10) and Tetra ReptoFilter 90 GPH (20-gallon rated). Ideal for 5-10 gallon fish tanks or aquariums, they lock into place easily.
• 4-in-1 Power Filtration for Crystal-Clear : We built these cartridges to tackle every aquarium mess. Dual-sided dense mesh: Traps debris, uneaten food, and fish waste before they cloud your water. 40% more activated carbon: Lasts longer to eliminate odors, yellowing, and impurities—keeping glass free of scale. Ceramic beads: Absorbs heavy metals and improves water quality for happier fish and plants.
• Pre-Assembled & Ready to Use : Skip the complicated setup! Each cartridge comes fully assembled with a sealed top and reinforced edges (to prevent carbon dust leaks). Just rinse it under cool tap water or aquarium water , drop it into your filter, and it starts working immediately.
• Durable ABS Frame for Consistent Performance : These aren’t flimsy disposable filters—they feature a built-in ABS plastic frame that keeps carbon and media evenly distributed. Every drop of water passes through the filtration layers, so you never get "dead spots" in cleaning. The ABS edges also resist warping, ensuring a tight fit in your Whisper filter.
• Smart Tips : It is recommended to replace the filter element every 2-4 weeks to maintain the best filtration effect and provide a healthy and fresh living environment for your fish (adjust based on tank size, fish load, or algae growth).