The Marina Battery Air Pump is a compact, battery‑powered aeration system designed to keep aquarium water oxygenated whenever mains power is unavailable.
It is especially valuable for beginner aquarists who wish to protect their fish during power outages, travel, or quarantine situations without complex equipment.

Key Features and Benefits

• Reliable backup air source that maintains oxygen levels if your main air pump or power supply fails, reducing stress and risk to fish.

• Portable design with a practical hanging clip so you can attach it to the aquarium or a bucket when transporting fish or using a hospital tank.

• Includes airline tubing and an airstone, allowing you to start aerating immediately after inserting the batteries.

• Simple manual on/off switch, making operation straightforward for beginners with no technical setup.

• Suitable for coldwater, tropical, and marine aquariums, giving flexibility if you keep different types of fish or invertebrates.

• Splash‑resistant casing helps protect the internal components in typical aquarium environments.

Technical Details

• Power: 2 x D‑size batteries (not included).

• Air outlet: 1 standard outlet for common aquarium airline.

• Approximate flow rate: up to 156 litres per hour (model dependent), providing vigorous bubble production for most small to medium setups in emergencies.

• Typical dimensions: around 14 x 8 x 4.5 cm, compact enough to store in a cabinet or emergency kit.

Ideal Uses for Beginner Aquarists

• Power cuts: Keeps water moving and oxygenated so fish can breathe comfortably until normal power returns.

• Fish transport: Provides aeration in buckets or transport containers when moving fish between tanks or locations.

• Quarantine or hospital tanks: Offers independent air supply for temporary tanks, reducing the need for extra electric pumps.

Simple Setup Guide for Beginners

1. Insert two D‑size batteries following the polarity markings inside the pump.

2. Connect the supplied airline tubing to the air outlet nozzle and attach the airstone to the other end.

3. Hang or place the unit beside the aquarium or transport container, keeping it above the water line.

4. Place the airstone in the water and switch the pump ON; adjust the stone position to distribute bubbles evenly.