Fluval FX2 High Performance External Canister FilterThe Fluval FX2 circulates and filters 1800 litres of water an hour and has an astounding filter media capacity that produces the cleanest and healthiest results ever. Filtering media can easily be placed in a removable stack of media baskets which is at the heart of Fluvals multi stage filtration. The baskets are precision engineered to eliminate water by pass, making filtration more efficient. The baskets can hold a total a massive amount of media