- Wall Mounted Design: This small fish tank fan features an external wall-mounted design, compatible with glass thicknesses up to 10mm. It saves valuable space in your aquarium while providing efficient cooling. - Waterproof Construction: Measuring 7cm x 12.5cm (2.76 inches x 4.92 inches), this fan is specifically designed for humid environments, making it ideal for use in aquariums without the risk of damage. - Portable and Easy to Install: The mini fish tank cooling fan is USB powered, ensuring hassle-free installation. Its compact size means it won't take up any space inside your tank, keeping your aquatic environment clutter-free. - Adjustable Speed for Optimal Cooling: Designed to deliver powerful cool air, this aquarium cooling fan features adjustable speed settings. You can easily maintain a comfortable environment for your fish and aquatic plants, promoting their health and well-being. Use Scenarios: 1. Summer Heat Relief: Use the fan during hot summer months to prevent water temperature from rising, helping to protect sensitive fish species. 2. Aquarium Maintenance: Keep your tank stable during maintenance sessions when the water may heat up from exposure. 3. Compatibility with Various Tanks: Ideal for both small and medium-sized aquariums, ensuring a versatile solution for different setups. This fan is an essential addition to any aquarium setup, helping you create a stable and healthy environment for your aquatic life.