Aquael FZN PRO 400 Hang On Cascade Filter for Aquarium 10‑75L

Aquael FZN PRO 400 – Ultra‑Quiet Cascade Filter for 10‑75L Aquariums

Designed for nano, shrimp and small marine tanks, the Aquael FZN PRO 400 creates a natural cascading water flow that mimics ocean waves, enhancing oxygen exchange and providing a visually appealing backdrop for fish and invertebrates. The cascade design boosts biological filtration by offering extensive surface area for beneficial bacteria.

With its compact yet capacious media chamber and low‑power motor, this filter delivers high performance without a large footprint or excessive sound, making it ideal for home aquariums, office environments or display setups where silence is prized.

Specifications

• Power: 4.5 W
• Flow Rate: 320 l/h
• Tank Size: 10–75 L (suitable up to 300 L for larger models)
• Dimensions: 12.7 × 12.8 × 16 cm
• Cartridges: 1 (Standard, Carbomax, Phosmax options available)
• Noise Level: 32 dB
• Water Intake: Telescopically adjustable tube
• Outflow Control: Circular regulator for spout height
• Motor Position: Submerged for silent operation and instant start
• Construction: Non‑corrosive, suitable for fresh & salt water

How to Use This Cascade Filter

1. Mount the filter: Slide the device onto the aquarium edge, ensuring the intake tube is level with the tank surface.
2. Adjust the intake tube: Extend or retract the telescopic tube so the inlet matches the substrate height.
3. Set the outflow spout height: Use the circular regulator to position the spout flush with or slightly above the tank rim.
4. Install cartridges (optional): Insert the chosen cartridge (Standard, Carbomax, or Phosmax) and secure it.
5. Fill the media chamber: Add bulk filter media if desired, layering as required for cascading action.
6. Adjust filtration strength: Turn the large adjustment knob to set the desired flow intensity.
7. Connect power: Plug into a European plug outlet; the motor starts instantly without priming.

Care & Maintenance Tips

• Check the rubber isolation regularly to ensure vibration dampening remains effective.
• Clean the filter sponge and impeller with a soft brush or by turning the motor so it spins without back‑pressure.
• Replace or refill cartridges every 4–6 weeks depending on tank bioload.
• Inspect the media chamber for any buildup and rinse gently with tap water before running the filter again.
• Keep the motor housing dry; avoid submerging the entire unit in water beyond the designed limit.
• Store the filter in a cool, dry place when not in use, protecting the plugs and cables.