SF-650F Aquarium Canister Filter - 172GPH External Filter for 20-35 Gallon Tanks ? Professional-Grade Aquarium Filtration High-efficiency external canister filter with silent operation (under 50dB) and complete bio-filtration system for crystal clear water. Key Features: ? Powerful Filtration: 172GPH (650L/H) flow rate for 20-35 gallon tanks ? Whisper-Quiet: Pure copper brushless motor ( 50dB operation) ? Complete Media: Includes ceramic rings, bio-balls, and sponge layers ? Energy Efficient: Only 8W power consumption ? Leak-Proof Design: Thickened silicone seals and quick-release joints ? Technical Specifications: Flow Rate: 172 GPH (650 L/H) Power: 8W Tank Size: 20-35 gallons Noise Level: 50dB Media Included: Ceramic rings, bio-balls, sponges ? Premium Benefits: Dual quick-release heads for easy maintenance Flow control valve adjustment Optimized rotor structure for longevity Oxygenates water while filtering Removes fish/turtle waste effectively Ideal For: Freshwater aquariums Turtle tanks Fish breeding tanks Aquarium exhibition setups Planted tanks Flower/ornamental water features ? Pro Tips: Prime the filter before first use for optimal performance Clean/replace media monthly for best results Flow rate decreases with media loading and head height Position below tank for gravity-assisted operation ? What Makes This Filter Special? Unlike basic filters, the SF-650F combines three-stage filtration (mechanical, biological, and chemical) with silent operation and energy efficiency. The external canister design keeps equipment out of your tank while providing superior water polishing for healthier aquatic life.