JBL ProClean Aqua Ex Nano 10-35 is a small gravel cleaner ideal for nano aquariums and other small aquariums. With removable suction net to prorect shrimps, crabs and other small inhabitants. The JBL Nano Gravel Cleaner has a quadratic form for better cleaning of corners in the aquarium. Other gravel cleaners, which are round, cannot clean corners.JBL ProClean Aqua Ex Nano 10-35+ small, but smart and very effective gravel cleaner to siphon off waste from small aquariums+ use: Hold the gravel cleaner under the water, briefly suck down the hose once and let the water flow into the bucket. Immerse the gravel cleaner into the substrate and the suction will remove the waste from the bottom+ the square cross section also enables you to siphon off waste from the corners of the aquarium+ safe for the animals: removable protective sieve prevents accidental sucking in of plants, shrimps and fish+ package contents: 1 gravel cleaner with35 mm, 12.5 cm height, incl. 1.5 m hose (9/12 mm)