Fluval FX Series Canister FilterDesigned for aquariums up to 400 gallons, FX6 is the high capacity workhorse of Fluval's canister lineup, enhanced with all the power and reliability you've come to expect from a high performance filter. Key Features : Multi stage filter pumps out an astounding 925 gallons (3500 L) of water per hour Improved motor technology provides better performance while consuming 10% less electricity than previous generation Smart PumpTM advanced microchip