Aquarium Water Fan Quiet Aquarium Fan for Freshwater Corals Description: [Aquarium] Aquarium cooling fans are characterized by excellent build quality and provide efficient ventilation to reduce heat transfer from aquarium equipment. [Silent motor] Extremely quiet operation with adjustable position, ideal for marine aquariums (coral and shard tank) and for freshwater aquarium. [Easy to install] No assembly required, it is easy and convenient to use. Easy installation (clamp mounting support, tank wall thickness ≤8 mm). [Compact design] Mini cooling fans for aquarium, USB interface, simple and convenient operation, small size, does not take up space in the aquarium. [2 speed levels] Aquarium fan with the ability to adjust two wind speeds, can cool the aquarium by about C, ma low power consumption and is easy to use. Specification: Material: ABS Size: 12,5 cm x 4 cm / 4,92 inch x 1,57 inch The package includes: 1 aquarium fan