Fluval AquaClear AC 70 Hang On Power Filter 1135 L/H - For Aquariums up to 265 L

Unsurpassed 4-Stage Aquarium Filtration

Built on a 40-year legacy of engineering reliability, the next-generation Fluval AquaClear AC70 Hang On Power Filter sets the gold standard for hang-on-back (HOB) aquarium clarity. Featuring up to 7 times more filtration media volume than standard competing units, it ensures superior contact time for biologically stable, crystal-clear water.

The re-engineered AC70 clip-on system features a reconfigured media basket with custom fins that cycle your tank water through four dedicated stages:

• 1. Pre-Filter Stage: The intake strainer sponge traps large debris and stringy algae filaments while keeping small fish, fry, or shrimp entirely safe from the pump intake.
• 2. Mechanical Stage: A high-density 30PPI Bio-Foam insert mechanically traps fine particles and organic waste while establishing a massive footprint for beneficial bacteria.
• 3. Chemical Stage: Premium Activated Carbon completely eliminates foul odours, water discolouration, and heavy impurities to create clear water.
• 4. Biological Stage: The highly porous BIOMAX ceramic rings support massive colonies of beneficial nitrifying bacteria to neutralize toxic ammonia and nitrites continuously.

Key Features & Performance Upgrades:

• Patented Refiltration System: An adjustable flow control slider lets you dial down water velocity by up to 66% for delicate fish varieties like Betta fish or livebearers without putting strain on the motor unit.
• Quieter Operation: Features a reconfigured rotor configuration and precision motor design to dampen vibration, eliminating the typical "humming" or rattle common to older filters.
• CycleGuard System: The independent, modular media blocks let you swap out single filtration stages without disrupting your established nitrogen cycle or killing beneficial bacterial colonies.
• Versatile Application: Fully optimised for both freshwater aquariums and marine saltwater setups.

Product Specifications:

• Brand: Fluval AquaClear
• Model Number: 19615 (Replaces legacy AquaClear 70/300 / A615 models)
• Maximum Flow Rate: 1135 Litres per Hour (L/H)
• Aquarium Capacity: Recommended for fish tanks up to 265 Litres
• Power Consumption: 6 Watts / 240V Australian Plug
• Dimensions (L x W x H): 21.6 x 15.5 x 21.8 cm

Frequently Asked Questions (FAQ)

How often should I clean or replace the Fluval AC70 media inserts?

To protect your biological cycle, never wash or replace all media inserts at the same time. Rinse your 30PPI Bio-Foam in removed aquarium water every 2 to 4 weeks and replace it every 6 months. Change the Activated Carbon insert every month to maintain chemical absorption. The BioMax ceramic rings should simply be lightly rinsed during monthly water changes and replaced partially every 6 to 12 months.

Is the AquaClear AC70 quiet enough for a bedroom tank?

Yes. The latest generation AC70 model features an upgraded sound-dampening top cover to absorb the echo chamber effect, paired with a reconfigured impeller layout. This combination minimises resonance and vibration, keeping operation whisper-quiet.

What should I do if the filter rattles or fails to pump water?

If the unit rattles or loses suction, unplug the unit and check the motor unit housing. Debris, sand grains, or hard calcium buildup can occasionally stall the magnetic impeller wheel. Use a dedicated Fluval Impeller Cleaning Brush to scrub out the inner impeller well and intake pipe to instantly restore full flow rate velocity.