Gravel Cleaner with Pump - 185mm

Boyu Gravel Cleaner with pump - 185mm. Innovated siphon pump, quick & easy with on/off flow control valve, 6" tubing included. Submerge gravel vacuum cleaner inside aquarium and place other end of hose into bucket, open up flow control valve (adjust depends on size of aquarium) and start squeezing the auto siphon pump until a siphon is created. Removes Fish waste and debris from gravel. Hose approx 2m.