Description
Fluval AquaClear Hang-On AC Power Filter AC70 (1135 LPH) — Delivers powerful high-flow filtration for aquariums up to 265 litres (70 US gallons)
The Fluval AquaClear Hang-On Filter AC70 (SKU: FAQ04) delivers powerful high-flow filtration for aquariums up to 265 litres (70 US gallons). Processing up to 1135 litres per hour (LPH), this high-capacity hang-on-back filter provides superior mechanical, chemical, and biological performance. Its deep basket design prevents bypass, forcing water through all media stages for crystal-clear water quality. Along with its proven multi-stage cleaning, it has CycleGuard beneficial bacteria support and a patented refiltration system. The patented refiltration System is a unique feature that permits flow rate adjustment without compromising filtration efficiency. When flow is reduced, the system will process up to 50% of the water several times within the chamber, ensuring a cleaner and healthier aquarium with exceptionally clear water.
AC Series power filters have become a standout choice that aquarium enthusiasts know and trust. CycleGuard maintains your aquarium’s biological balance and prevents nitrogen cycle disruptions. By allowing 1 of the 3 media inserts to be changed at a time, bacteria levels remain stable, supporting continuous and effective biological filtration without harmful fluctuations.
Superior Filtration: 4 Stage Filtration
A newly patented refiltration system that has calibrated water path cycles through 4 complete filtration stages to optimise cleaning performance.
– Pre-filter stage: Intake strainer sponge protects the pump from large debris and algae strands, and keeps fry and small fish safe.
– Mechanical Stage: High-density 30PPI Bio-Foam (50% more porous than before) traps finer particles and debris while supporting biological filtration (AC20/AC30/AC50/AC70 models).
– Chemical Stage: Activated carbon eliminates odours, discolourations and impurities to improve water clarity and colour. Insert is now easily replaceable from the top without having to remove the media basket.
– Biological Stage: Ultra-porous BIOMAX boosts beneficial bacteria growth and optimises aquarium health.
Usage & Application
When to Use
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Large Aquariums: Suitable for medium-to-large freshwater, planted, or saltwater setups up to 265L.
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Heavy Waste Load Tanks: Excellent for tanks with high bio-loads such as goldfish, cichlids, or heavily stocked community aquariums.
How to Use / Installation Process
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Assemble filter basket with included Foam Pad, Activated Carbon, and BioMax.
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Mount filter body on the rear wall of the aquarium.
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Ensure the extension intake tube is fixed securely and prime the filter chamber completely with fresh water.
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Plug into a wall outlet and adjust the top control lever to balance turnover rate.
Product Specifications & Highlights
Key Features
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High Output Filtration: Pumps up to 1135 LPH for rapid water circulation and clarity.
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Unmatched Media Surface: Deep filter volume supports massive biological bacterial colonies.
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Flow Refinement Control: Adjust flow output to suit sensitive livestock without stressing the motor.
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Durable Construction: Made from impact-resistant materials built for long-term daily operation.
Product Details
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Brand: Fluval
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SKU: FAQ04
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Barcode (GTIN/UPC): 0015561196154
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Product Type: Filters / Hang-On-Back Power Filters
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Package Dimensions: 280 mm (L) × 230 mm (W) × 160 mm (H)
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Gross Package Weight: 1,450 g (1.45 kg)
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Target Environment: Freshwater & Marine Aquariums (150 L to 265 L / 40 to 70 US Gal)









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