Boyu Gravel & Sand Cleaning Siphon with Valve Control

Boyu Gravel & Sand Cleaning Siphon with Valve Control

• Submerge gravel and sand vacum cleaner inside aquarium.
• Pls other end hose into a bucket.
• Open up Flow Contro; Valve.
• Start Squeezing the Auto Siphon Pump until a siphon is created.
• Remove fish waste and debris by lowering gravel vaccum on gravel.
• Abjust Flow control valve as needed for different size aquariums.