Fluval FX4 canister filter for up to 250 gal aquariums
Canister filter for aquariums up to 250 gal with multi-stage filtration and auto air evacuation. Noted for quiet operation, easy setup, and strong water flow in large tanks
Highlights
- high flow rate
- smart pump with microchip optimization
- self-starting with water addition
Pros
- multi-stage filtration
- high water flow
- quiet operation
- easy setup and maintenance
- auto air evacuation every 12 hours
Cons
- mixed reviews on functionality for some tanks
- some reports of motor failures
Best For
Features
- Canister filter pumps up to 700 US gal (2,650 L) per hour for large aquariums
- Smart Pump uses microchip technology to monitor and optimize performance
- Self-starting design; simply add water and plug in to run
- Auto-evacuates trapped air every 12 hours for efficiency
- Removable, stackable media baskets hold 1 US gal (3.9 L) of media and prevent water bypass
