To enhance the circulation and quality of water in your aquarium, connect the nozzle to your aquarium water outlet return pipe or water pump outlet. This simple yet effective addition will help prevent stagnant water areas, ensuring even distribution of water throughout the tank. Improved water circulation not only enhances the overall water quality but also promotes better fish health by reducing the risk and algae buildup. The nozzle is designed to provide a 360-degree water flow, ensuring that every corner of your aquarium receives adequate water movement. This is particularly beneficial for larger tanks where dead spots can be more prevalent. By maintaining a consistent and healthy water environment, you can create vibrant and thriving habitat for your aquatic pets. The package includes two large nozzles, making it ideal for those who have multiple tanks or larger setups. Features -Color:Black -Material:ABS -Size:7.50X5.00X2.20cm/2.95X1.97X0.86in -360degree flow: offers a full range of water flow, ensuring every corner of your aquarium receives adequate circulation -Gentle water distribution: the duckbill nozzle design ensures water is evenly distributed, creating and gentle environment for fish -Durable construction: made from Durable materials, this nozzle use and reliability in your aquarium setup -Easy installation: simple to install, this nozzle is compatible with a wide range of aquarium sizes, making it a convenient addition to any tank -Aquatic pet compatibility: tailored to meet the needs of various aquatic pets, providing a comfortable and suitable environment for all Package list: 2pcs fish tank duckbill nozzle