Fluval FX6 Canister Filter 3500 LPH

Introduction

The Fluval FX6 Canister Filter is a high-capacity, multi-stage filtration system designed for large aquariums up to 1500L (400 US gallons). With an ultra-powerful flow rate of 3500 LPH, it provides superior mechanical, biological, and chemical filtration, ensuring crystal-clear water for both freshwater and saltwater aquariums. The FX6 is engineered for high-performance filtration, making it an excellent choice for heavily stocked tanks, large fish species, and reef aquariums.

Features

• Multi-stage filter pumps an impressive 925 gallons (3500 L) per hour

• Smart Pump™ technology continuously monitors and optimizes performance

• Self-starting—just add water and plug in; auto-evacuates trapped air every 12 hours for peak efficiency

• Easy water changes—connect a hose to the output (kit sold separately), and Smart Pump™ does the rest

• Removable, stackable media baskets prevent water bypass and hold 1.5 gallons (5.9 L) of media

• All filter media included—mechanical, chemical, and biological

• Aqua-Stop valves with leak-proof Click-Fit attachment system

• Valves positioned at a 45-degree angle for easy installation and rotation

• Anti-clog telescopic strainer ensures continuous water flow

• Multi-directional output nozzles allow for customizable water flow

• Utility valve with drain hose for easy maintenance and flushing

• Rubberized feet for quiet operation

• Compact 21″ design fits under most aquariums

Usage

• Installation:

  • Place the FX6 below your aquarium for optimal performance.

  • Attach the inlet and outlet hoses securely.

  • Fill the canister with water and plug it in—the self-priming feature will start automatically.

• Maintenance:

  • Clean the filter media every 4-6 weeks to maintain efficiency.

  • Replace chemical media like activated carbon regularly for optimal water quality.

  • Use the built-in drain valve for hassle-free water changes.

• Performance Monitoring:

  • Check the flow rate and water clarity to ensure efficient operation.

  • Inspect the hoses and seals periodically for any signs of wear.

What’s Included

Recommendations

The Fluval FX6 Canister Filter is perfect for large freshwater and marine aquariums, including cichlid tanks, predator fish setups, and reef tanks. It’s ideal for tanks with large fish and high bioloads, ensuring superior water quality and clarity. For smaller setups, consider the Fluval FX4, which offers similar features in a more compact form. Pair with Fluval Biological Enhancers to maximize beneficial bacteria growth and maintain a stable ecosystem.