Fluval FX4 1000L external filter sock meaning that all of the

meaning that all of the chemicals and pollutants have been removed from the resin

Base plate 17x23 cm (6

All in One makes the use of the so-called A and B calcium and alkalinity supplements unnecessary

Filter volume 3

accelerated coral growth

Fluval FX4 1000L external filter sock meaning that all of theDescription Product Description Building on the mighty FX performance and reliability platform, the all new FX4 high performance canister filter is a compact 'little brother' to the FX6. The FX4 bridges the gap between the Fluval 406 and the FX6 canister filter, making it an ideal choice for aquariums up to 250 US Gal (1000 L). Key Features : Multi stage filter pumps out 700 gallons (2650 L) of water per hour Smart advanced microchip technology