A compact hanging aquarium cooling fan that lowers water temperature, protects sensitive fish and plants, and fits wherever space is limited. Key benefits Effective cooling: The hanging design directs airflow across the water surface to reduce temperature and stabilize the tank environment, helping prevent heat stress in aquatic life. Spacesaving USB power: A builtin USB interface lets you power the fan from common USB sources so the unit does not take up tabletop or cabinet space. Low energy use: Designed for efficient cooling with minimal power draw, it helps control temperature without significantly raising electricity costs. Quiet operation: Runs quietly to avoid disturbing fish, plants, or the room environment, keeping the aquarium calm and natural. Product highlights Hanging style: Mounts on the aquarium edge to maximize airflow over the tank while keeping the unit out of the way. USB interface: Portable and convenient — works with standard USB power sources for flexible placement. Performance focus: Combines low power consumption and effective airflow to maintain a comfortable habitat for aquatic pets. Gentle and quiet: Engineered for quiet operation to maintain a serene aquarium setting. Practical use scenarios Summer temperature control: Keep your tank cooler during hot weather to prevent overheating and reduce stress on tropical species. Sensitive or planted tanks: Use in aquariums with temperaturesensitive fish or delicate plants that benefit from incremental cooling and stable surface exchange. Temporary or compact setups: Ideal for quarantine tanks, desktop aquariums, or situations where space is limited and a discreet cooling solution is needed. Installation and compatibility Hangs on the aquarium rim for simple setup. Powered via USB for flexible placement; compatible with common USB power sources. This hanging aquarium cooling fan offers a practical, energyefficient, and quiet way to reduce tank temperature and support a stable environment for your aquatic pets.