Compact design This mini USB oxygenator for aquariums features a spacesaving build that fits small fish tanks without occupying unnecessary room while maintaining efficient operation. Quiet operation Enjoy peaceful aquarium moments as the oxygenator provides steady bubbling with minimal noise, creating a calm environment for your fish. USB powered charging Power this portable bubbler through any USBcompatible device, offering convenient charging options at home or on the go. Efficient oxygenation Help maintain oxygen levels in your tank with a compact bubbler that delivers consistent air circulation to support your aquatic ecosystem. Use scenarios Home nano or Betta tank: Ideal for small setups where space is limited, delivering reliable aeration without crowding the tank. Travel or dorm setups: USBpowered flexibility lets you keep oxygenation steady using a laptop, power bank, or USB wall adapter while away from home. Office or classroom aquariums: Quiet operation reduces disturbance, while USB compatibility allows easy power access from computers or USB hubs.