Hailea aquarium air pump ACO-2202 for 30–90 L tanks, model 11531

Hailea ACO-2202 is an aquarium air pump designed for home tanks with a volume of approximately 30–90 litres. The pump provides continuous aeration and gentle water movement to support oxygenation, assist air-driven filtration and ornaments, and promote stable biological filtration. Its compact footprint and straightforward functionality make it suitable for basic aeration tasks in freshwater, marine, breeding and quarantine setups.

Advantages

The unit offers steady airflow suitable for small to medium aquariums while maintaining low noise operation and modest power consumption. Its compact design allows flexible placement inside or next to cabinetry, and the pump is compatible with standard airline tubing and multiple simple air accessories. The straightforward mechanical design facilitates routine maintenance such as diaphragm checks and replacement of common wear parts.

Suitable for

• Aeration and oxygenation in home aquariums (30–90 L)
• Powering sponge filters, small air stones and air-driven ornaments
• Supplemental water movement in breeding or quarantine tanks
• Providing gentle circulation for planted or community tanks with low to moderate flow needs

Key specifications

• Recommended aquarium volume: approximately 30–90 litres
• Compact external pump body for placement outside the tank or inside cabinet spaces
• Suitable for connection to single or multiple small air outlets with standard airline tubing
• Intended for continuous operation to maintain stable aeration and biological filtration support

How to use

Install the pump on a stable, level surface above or beside the aquarium to reduce the risk of water backflow; if placing below the waterline, fit a non-return check valve in the airline. Connect appropriate airline tubing from the pump outlet to the desired air accessories such as sponge filters or air stones. Start the pump and observe airflow and aquarium behaviour; adjust placement of air diffusers to achieve required bubble dispersion and circulation. Periodically check the pump for unusual noise, vibration or reduced airflow and perform maintenance as needed.

Usage recommendations

For reliable operation, position the pump on a vibration-damping pad to minimise transmitted noise, replace diaphragms or seals at first sign of reduced performance, and use check valves when the pump is located below water level. Match the number and type of air outlets to the aquarium’s biological and circulation needs to avoid over-aeration or excessive water disturbance.