Fluval FX6 Canister – 3500 L/h Filter up to 1 500 L
Fluval FX6 Canister – 3500 L/h Filter up to 1 500 L
Ultimate Power & Convenience in One Filter
The Fluval FX6 is a high-performance external canister that delivers professional-grade filtration for very large freshwater, marine or reptile systems—yet it still fits underneath most home aquaria. Rated for aquariums up to 400 US gal / 1 500 L and pumping out 925 US gph / 3 500 L/h, it keeps even monster-fish and heavily stocked reef tanks sparkling clean.
Key Benefits & Features
| Feature | Why It Matters |
|---|---|
| Smart Pump™ Micro-chip Control | Continuously monitors impeller speed to maximise flow and energy efficiency, and pauses every 12 h to release trapped air for peak performance. |
| Self-Priming Start-up | Just add water and plug in—no manual siphoning. The electronic pump primes the canister in seconds. |
| 20 L “basket-in-basket” media chamber | Six red/white stackable baskets provide 5.9 L of biological volume and 2 100 cm² of mechanical foam for unrivalled capacity and custom media flexibility. |
| Utility Drain Valve | Built-in bottom valve with hose clips allows fast water-changes or canister emptying—no heavy lifting. |
| Monthly Maintenance Indicator Dials | Set the two dials on the lid to the day/month of service so you never forget the next clean-out. |
| AquaStop Click-Fit Valves | 45-degree, leak-proof unions rotate for easy hose routing and mess-free disconnection. |
| Twin Directional Outlets & Anti-Clog Intake | Direct flow exactly where you need it while the heavy-duty telescopic strainer resists debris build-up. |
| Energy-Efficient, Whisper-Quiet Motor | Redesigned impeller and rubber feet minimise vibration while drawing just 43 W at 230-240 V. |
Technical Specifications
| Spec | Value |
|---|---|
| Aquarium Capacity | 1 500 L |
| Pump Output | 3 500 L/h |
| Filter Circulation | 2 130 L/h |
| Canister Volume | 20 L |
| Biological Volume | 5.9 L |
| Max Head Pressure | 3.3 m |
| Dimensions | 40 × 40 × 53 cm (H with valves 54 cm) |
| Power Consumption | 43 W @ 230–240 V |
What Media Comes in the Box?
6 × Bio-Foam pads – coarse mechanical + biological
2 × Bio-Foam+ – fine pore polishing
2 × BioMax rings – high-capacity nitrification
1 × Carbon Foam pad – chemical/odour removal
2 × Media bags – ready for Purigen®, phosphate remover, etc.
Installation & Operation
Rinse media and baskets quickly in de-chlorinated water.
Stack baskets in the canister; align red handles for easy removal later.
Fill the body with tank water, close the motor lid, lock the eight clamps.
Attach hoses via AquaStop valves; set outlets just below the surface.
Plug in—Smart Pump takes over, primes and begins full flow within 2 min.
For water-changes, close AquaStops, connect a hose to the utility valve, and open the valve to drain; reverse to refill and degas.
Ideal Applications
Large predator, cichlid or goldfish tanks with heavy bio-load
Reef or FOWLR systems needing high turnover and nitrate reduction
Planted “monster” aquascapes where external CO₂ reactors are used
Turtle and axolotl setups that generate copious waste
Pro Tips
Add Seachem Matrix® inside the lower baskets to boost denitrification.
Pair with Fluval FX Gravel-Vac Kit (sold separately) to pull detritus straight through the utility valve during water-changes.
Rotate the maintenance dials after each service to stay on a 3-month schedule and keep flow rates at factory spec.
FAQs
Q – Will the FX6 fit in my cabinet?
Yes—its 53 cm height (including valves) slides under most STD 60 cm-high stands; always allow 5 cm clearance for hose bends.
Q – Do I have to replace media pads monthly?
No. Pads are washable; simply rinse with tank water during service. Replace when structural integrity declines.
Q – Is the motor noisy at 3 500 L/h?
No. The Smart Pump impeller and rubber feet keep sound levels barely above ambient room noise.
