Boyu WF-2045 Hang On Back Filter - 500L/h Waterfall Style HOB Filter

The Boyu WF-2045 is a compact, efficient hang-on-back (HOB) filter ideal for smaller aquariums and planted tanks. This whisper-quiet waterfall-style filter combines mechanical, chemical, and biological filtration in one space-saving design—perfect for nano tanks, breeding setups, and community aquariums requiring reliable water circulation without taking up valuable tank real estate.

Key Benefits:

• Optimal Flow Rate (500L/h): Delivers 3-4 complete water turnovers per hour for tanks up to 40-60 liters—ideal for gentle water movement in planted tanks while maintaining effective filtration
• 3-Layer Filtration System: Multi-stage mechanical, chemical, and biochemical filtration removes debris, impurities, and odors while cultivating beneficial nitrobacteria for biological cycling
• Ultra-Low Power Consumption (6.5W): Energy-efficient motor runs continuously 24/7 with minimal electricity draw—saves money on operating costs
• Super Silent Operation: Excellent shock absorption and vibration dampening—quieter than competing HOB filters, with only soothing waterfall sounds
• Waterfall Aeration Design: Specially designed cascade flow increases oxygen dissolution and promotes CO₂ diffusion—ideal for planted aquariums and fish requiring higher oxygen levels
• Surface Oil Film Processor: Automatically removes biofilm and surface contaminants, keeping water crystal clear and extending filter life
• Adjustable Flow Rate: Fine-tune water flow with control knob to suit delicate plants, fry tanks, or heavily stocked setups
• Compact & Slim Design: Space-efficient profile (235 x 118 x 325mm) fits tight spaces and doesn't clutter smaller aquarium setups
• Easy Assembly & Maintenance: Simple plug-and-play installation; filters hang securely on any tank edge
• Suitable for All Water Types: Works in freshwater, planted, and brackish aquarium systems

Perfect For: Nano tanks (40-60L), planted community tanks, shrimp tanks, breeding tanks, betta tanks, and aquariums where space and quiet operation are priorities.