Take advantage of siphon principle, very convenient to change the water of your fish tank quickly.
It can also be used for fish tank sand wash and clean fish excreta.
High-quality soft hose and hard pipe, easy to connect and use.
It should be used with a hand-operating pump（not included).
You just need to shake up and down and the water will out, the sand can be washed according to the siphon principle.

Take advantage of siphon principle, very convenient to change the water of your fish tank quickly.
It can also be used for fish tank sand wash and clean fish excreta.
High-quality soft hose and hard pipe, easy to connect and use.
It should be used with a hand-operating pump（not included).
You just need to shake up and down and the water will out, the sand can be washed according to the siphon principle.