An air pump is a device used to move air in an aquarium, often creating underwater currents and improving water circulation. Most aquarium air pumps use an electromagnet to rapidly vibrate a rubber diaphragm, pushing air through tubing into the tank.
Why Use an Air Pump?
Improves Water Circulation: Circulation prevents dead spots and stagnation, moving poorly oxygenated water from the bottom to the surface, where it can release carbon dioxide and absorb oxygen.
Powers Equipment: Air pumps can drive sponge filters, under gravel filters, and some protein skimmers.
Aerates the Tank: Air stones and ornaments create bubbles, enhancing oxygen levels and providing visual interest.
Supports Semi-Aquatic Animals: Species like newts, crabs, mudskippers, frogs, and shrimp benefit from air pumps to maintain fresh, aerated water and prevent them from escaping un-aerated areas.
Prevents Stagnant Zones: The flow created by the air pump keeps the water evenly mixed and healthy.
Choosing the Right Air Pump
We understand it can be a bit of a minefield when selecting an air pump for your fish tank. Here are some guidelines:
Consider Your Load: The more devices you are running from your air pump, the larger it will need to be. Fewer devices require a smaller pump.
Consider Resistance: The more resistance in the system (e.g., larger air stones or dense materials like wooden blocks), the more powerful the pump must be.
Plan for Growth: Choose an air pump slightly larger than you initially think you need. This provides extra capacity in case you add equipment or underestimate requirements.
Looking to Buy an Air Pump?
Browse our selection of reliable aquarium air pumps.