Fish rely on dissolved oxygen to stay healthy, and an aquarium air pump is the simplest way to keep water moving and oxygenated, especially in smaller or heavily stocked tanks. Our range spans single and multi-outlet pumps, whisper-quiet models and even a battery-powered option for power cuts. Pick a pump sized to your tank below, and check out our airstones and accessories to boost its effect.
Aquarium Air Pumps
Help and advice on shopping for: Aquarium Air Pumps
What are aquarium air pumps?
Aquarium air pumps mix air into your tank water, usually as a stream of bubbles through an airline and airstone that can even be disguised as a decorative ornament. They use very little power, and even a small pump can aerate a surprising amount of water. Pairing one with your filter helps it clear toxins from the water more effectively.
Why should I buy an air pump?
If fish are gasping at the surface, they're not getting enough dissolved oxygen, which is a sign of stress that can lead to disease. An air pump is one of the cheapest, lowest-maintenance pieces of kit in the hobby, and running one is especially worthwhile in smaller tanks, warmer water, or densely stocked setups where oxygen runs out fastest.
What types of pump are available?
Most pumps sit outside the tank and run a single airline into a stream of bubbles. Some models add a second or third outlet for multiple airlines, or pair with an airstone to diffuse air more gently across a wider area, both help in larger tanks. Our range includes options from industry leading brands such as Aqua One, AquaEl, Fluval, and our exclusive Swell range.
What should I look for?
Match the pump's output to your tank size and check the outlet count if you're running more than one airline. Energy efficiency matters too, since air pumps run continuously, and if you want more from your existing pump, our airstones and accessories can improve how evenly it aerates the water.
For help choosing your air pump, try reading our Which Aquarium Airpump Do I Need For My Tank? guide.