IMPROVE THE WATER ENVIRONMENT: All you have to do is put the water pump in a water tank, the water will start flowing and provide the living water for the underwater life. The water pump can easily increase the oxygen dissolved in the water and grow nitrifying bacteria, which is useful for keeping the water clean ADJUSTABLE WATER RATE AND 2 NOZZLES: The adjustable switch on the aquarium pump makes it easy to adjust the water flowThe maximum water flow: 800L / HThe maximum lifting height: 1.6 m2 9mm / 13mm nozzles available for you DRY FIRE PROTECTION FUNCTION: Our 48 hour aquarium pumpcan withstand long dry burning. With the small pond pump, you don't have to worry about running out or not having enough water in your aquarium when you take a short tripNote: it is better to avoid dry burns QUIET AND SUPER EXTRACTION: 4 strong suction cups of the pond pump fit vertically and horizontally on the glass surface. The water pump is not only easy to hide, but also easy to operate. Due to the quiet operation of the fountain pump, you will feel that the sound of the water from the fountain is a sound of relaxation and rest. This aquarium pump operates smoothly and quietly LARGE APPLICATIONS: The fountain pump can circulate your water tank and provide your fish with an almost natural environment. Perfect for small to medium sized aquariums, pet drinking fountains, fountains, spouts, water gardens, hydroponic systems, freshwater aquatic animals, etc Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia