Fluval FX4 Canister Filter 2650 LPH

Introduction

The Fluval FX4 Canister Filter is a high-performance, multi-stage filtration system designed for large aquariums up to 250 US gallons (1000L). With an impressive flow rate of 2650 LPH, this powerful canister filter ensures crystal-clear water by efficiently removing waste, toxins, and debris. The FX4 is perfect for freshwater and saltwater aquariums, offering advanced filtration technology with easy maintenance and energy efficiency.

Features

• Multi-stage filter pumps 700 gallons (2650 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 efficiency

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

• Removable, stackable media baskets prevent water bypass and hold 1 gallon (3.9 L) of media

• Includes all filter media: 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 ensure quiet operation

• Compact 16.5″ design fits under most aquariums

Usage

• Installation:

  • Position the FX4 below your aquarium for optimal performance.

  • Attach the inlet and outlet hoses and ensure all connections are secure.

  • Fill the canister with water and plug it in—the self-priming pump will take care of the rest.

• Maintenance:

  • Clean the filter media every 4-6 weeks to ensure optimal filtration.

  • Replace chemical media (such as activated carbon) regularly to maintain water quality.

  • Use the drain valve for easy water changes, reducing mess and effort.

• Performance Monitoring:

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

  • Inspect the seals and tubing periodically for wear or leaks.

What’s Included

Recommendations

The Fluval FX4 Canister Filter is perfect for large freshwater and saltwater aquariums, including planted tanks, cichlid tanks, and marine reef setups. Its high flow rate and customizable filtration make it ideal for tanks with large fish or high bioloads. For even larger setups, consider the Fluval FX6, which offers increased filtration capacity. Pair with Fluval Biological Enhancers for improved water quality and beneficial bacteria growth.