Continue circulating and aerating the water in your tank and provide an almost natural environment, ideal for small to medium sized aquariums, ponds, water gardens. Tips: EU standard plug is included in the package, which is only suitable for all European countries except UK. Use a plug with stable voltage and keep the motor running within rated power to ensure long service life. Place the pump in the water before connecting the power supply. When changing the water, disconnect the power supply. Clean it regularly in case of debris blocking, the pump would make noises if blocked. It is advisable to use a lubricant when the engine emits loud noises. Lubricating oil from electric hair clippers is a good choice.