Effective Cooling: Our aquarium fan helps lower water temperature and prevents overheating, providing a cool and comfortable environment for your fish. Durable and Sturdy Fan: Made of high-quality ABS material, this aquarium cooling fan is lightweight and built to last. Oxygen Optimization: Enhances oxygen levels in your aquarium while operating quietly. Features a USB interface for simple power supply. Easy Installation: Designed to cool aquarium water and suitable for aquarium walls up to 10mm thick. Installs easily with screws and a secure clip design. Widely Used: Suitable for both freshwater and saltwater aquariums. Can also help create a comfortable environment for pets such as cats, hamsters, reptiles, and dogs.