The Hobby Gravel Washer Jumbo use for clearing organic waste from the aquarium bed.
Recommended every time the water is changed. By adding an extension piece to the gravel washer, the aquarium bed can be cleaned deeper. Light bedding substrate is not so quickly and unintentionally sucked away. Regular usage prevents poor water values.
Tips on water quality: Each time you change part of the water, useful bacteria are also removed from your aquarium.