Convenient and Quiet: The mini aquarium cooling fan has low power consumption, low noise, large air volume, fast heat dissipation in the aquarium, durable and practical. Safe and energy-saving: aquarium cooling fan with USB interface, super energy saving, super low power consumption, energy saving and high efficiency. Compact design : This cooling fan is small and exquisite, beautiful in appearance, and does not take up space in use. Useful: Mini aquarium coolers can effectively prevent the temperature in the aquarium from d ’too high, causing the aquarium plants to be in poor condition or even die. Professional design: Mini aquarium chillers are suitable for aquariums around 30cm/11, 8 inches. It is made of high quality plastic and has a long service life.