This aquarium water changing tool is practical, you can clean the aquarium easily and quickly. Tube length 18.2cm/7inch; Drainage flexible hose length 150cm/59inch. Aquarium pump made from good quality plastic material which ensures long term use. Its flexible transparent PVC hose transfers liquids easily and quickly. Is specially designed for cleaning gravel. You can press it into the gravel. In an aquarium with a mini reef or aquatic plants, the pump cleans the gravel while changing the water. Easy to use: Clean stains by inserting the filter into the gravel and squeezing the pump to create a siphon, then lifting it slightly so as not to remove the gravel from the aquarium. SIMPLE AND EASY TO USE: Simply place the nozzle and hose into your aquarium tank. This is suitable for maintaining freshwater and saltwater tanks. VERY SIMPLE! Number of pieces delivered: 1 luckymeet