Aquarium Coolers, Fish Tank Fan Mini Suspended USB Cooler Fan System Adjustable Cooling for Aquariums Up to 8mm Thickness

Applicable aquarium: the thickness of the aquarium wall is less than 1cm (less than 20L water), can be adjusted and fixed by an ABS plastic nut. USB Power Port: DC 5V working voltage, safe to use (the power plug is not included in the package), energy saving, the USB power cord is about 1.3m/4.3ft long. Quick cooling: Turbo fan creates strong wind energy. Quickly reduce the water temperature and the heat projected by the lamps, strong wind, can be cooled by about 2℃-4℃, two adjustable winds. Reduce the rate of oil film on the surface of the aquarium water. Hanging Installation: This product is thin and lightweight, simple to mount on the wall, easy to use and install, space-saving.