- Exceptional Durability: Crafted from high-quality ABS material, this aquarium cooling fan is lightweight, wear-resistant, and designed to withstand the test of time, ensuring long-lasting performance without fading or breaking. - Dual Wind Speed Settings: Tailor the airflow to your aquarium’s needs with two adjustable air volume modes. Effectively lower water temperatures by 2 to 4 °C, preventing overheating and creating a stable environment for your aquatic life. - Whisper-Quiet Operation: Designed to maintain a serene habitat for your fish, our cooling fan operates quietly, ensuring that overheating is mitigated without disruptive noise. Protect your fish from health issues related to high temperatures while enjoying a peaceful atmosphere. - Easy Installation: This cooling fan is compatible with aquariums ranging from 15 to 25 cm in size. Its sleek design allows for effortless external wall mounting, minimizing space usage inside your tank. Installation is straightforward—simply screw it on for immediate cooling benefits. - Practical Use Scenarios: Ideal for tropical fish tanks where temperature control is critical, or for aquariums in warmer environments that require consistent cooling. This fan is also beneficial during summer months when ambient temperatures rise, ensuring a comfortable habitat for your fish year-round. This aquarium cooling fan combines functionality and convenience, making it an essential addition for any aquarist seeking to maintain optimal water conditions.