UPETTOOLS Aquarium Cooling Fan - Speed Adjustable Aquarium Chiller, Quiet Aquarium Cooler with Wide Angle Wind, Suitable for (3-7Gallon) Fish Tank (Ideal for Shrimp, Coral & Tropical Fish)

【Adjustable 2-Speed Aquarium Chiller Fan】 This fish tank cooling fan features 2 variable wind speeds to effectively lower water temperature by up to 2~5°C (4°F~9°F), ideal for aquariums with shrimp, coral, tropical fish, or saltwater species.

【No Drill Wall Mount Design for Rimless Tanks】 Designed for rimless aquariums up to 30cm wide and 12mm thick – no installation required. Easily attach the aquarium chiller to your fish tank glass in seconds.

【Ultra-Safe 5V Low Voltage Operation】 Built with safety in mind, this aquarium cooler runs on 5V low-voltage power for safe and energy-efficient cooling – perfect for home use and protecting your aquatic pets.

【Ultra-Quiet USB-Powered Cooling & Oxygenation】 Operates quietly via standard USB port; 45° angled airflow not only cools the water surface but also increases oxygen levels in the tank for healthier aquatic life.

【Perfect for Small Fish Tanks (3-7 Gallons)】 Compact and efficient aquarium chiller fan designed specifically for small tanks – great for shrimp tanks, coral tanks, betta tanks, reef tanks, and freshwater or saltwater setups. Note: Evaporation may increase when using a cooling fan – monitor and refill water regularly.