This aquarium cooling fan is suitable for both freshwater and saltwater tanks, versatile cooling options for various aquatic environments. The adjustable speed settings allow you to adjust the cooling intensity to suit your specific needs, ensuring your fish and other aquatic creatures thrive in a stable and comfortable habitat. Features -Color:Black -Material:ABS -Size:12.70X6.80X6.00cm/4.99X2.67X2.36in -Rapid temperature reduction: the fish tank cooling fan efficiently lowers water temperature, creating a comfortable habitat for your aquatic pets -Material: constructed with ABS, ensuring safety and durability for long term use -Design: low energy consumption design helps in reducing your carbon footprint and electricity costs -Silent performance: operates quietly, ensuring a peaceful environment for your fish -Easy setup: simple installation process makes it easy to set up and start using immediately Package list: 1 Tank Fan