Neatly. No mouth sucking required, simple. Effective with tap control for aquarium water changing, suitable for various sizes of aquariums. Suitable for both fresh and marine water.

Suction tube length: 2 meter.

Features:

  Effective removal of debris in the aquarium throughout the water changing process.

  Smart value designed with tap control siphon.

  Enjoy your aquarium water changing without mouth sucking.

  Easy to use.

  No electricity power required.

Instructions:

  For small or medium size aquarium:

    1. Dip the gravel cleaner with the attached tube 4 to 5 inches into the aquarium.

    2. Briskly move the tube up and down for about 3 times.

    3. Water will be drained off through the tube automatically.

    4. Use the tap at the other end to control the draining speed or to pause.

  For large and deep aquarium:

    1. Dip the gravel cleaner with the attached tube 20 to 25 inches into the aquarium.

    2. Quickly jerk the siphon to about 4 inches below the water level of the aquarium.

    3. Place the other end of the siphon (with tap side) over the edge of the aquarium.

    4. Water will be drained off through the tube automatically.

    5. Use the tap at the other end to control the draining speed or to pause.

Make sure the level of the other end of the siphon (with tap side) is lower than the tube AND the tap is not immersed under the water in the bucket.