[Multifunctional three-in-one gravel cleaner] With the help of a vacuum siphon, you can quickly and easily change water, clean gravel and remove algae, suck in fish manure or dead plant leaves. Very effective cleaning without problems. We recommend replacing 10-15% of the water every 10 days. [Air pressure button and water flow regulator] The convenient air pressure button provides one-handed operation and powerful suction. Connect the water flow clamp to optimize the water flow between the drainage and gravel, and the installation clamp to fix the pipe to free your hands. [Extended Inlet Drain Pipe] The aquarium cleaner is equipped with two 40 cm pipes, of which two lengths can be used to clean aquariums of different sizes. Thanks to the very long flexible hose (2.07 m), this water changer can be used in large aquariums without any problems, without worrying about water leakage. [Easy to install and use] Connect the drain pipe, and insert the water inlet and outlet of the aquarium into the bucket. Press and hold the air pressure button until the water is automatically discharged. Note: The position of the water outlet must be at least 50cm lower than the water inlet. [Detachable and washable] This aquarium cleaner can be divided into different parts, which can be adjusted according to your needs. Easy to clean and store. Product descriptionFeatures: Air pressure button: Just press the air pressure button repeatedly to empty the dirty water. Glass scraper: remove moss and debris from the bottom of the aquarium. Fixing clip: Fix the hose on the edge of the barrel for convenient use. Two water pipes: If necessary, the two water pipes at the connection can be lengthened to adapt to different aquarium sizes. Water flow buckle: Rotate up and down to adjust the water flow. It is very convenient and simple. Filter basket: Prevent blockage by large sand and scale during pumping. Specification:Material: PE+PVCWorking method: manual air pressureInlet pipe diameter: 2.7 cm. Length of inlet pipe: 40-80 cm. The length of the flexible hose: about 207 cm. Suitable for aquariums: