Boyu Instant Siphon Gravel Cleaner GC-303 24” VITAMIN Once the rate of calcium

Once the rate of calcium uptake in the aquarium has been determined (see opposite)

perfect for large sized garden ponds up to 12000L volume

Shipping Dimensions

but not both

Boyu Instant Siphon Gravel Cleaner GC-303 24” VITAMIN Once the rate of calciumModel GC 303 24 Features Innovative Auto Siphon Pump, Quick & Easy. On off flow control valve. Intergrated gravel fish strainer 6 Tubbing included. Direction Submerge gravel vaccum cleaner inside aquarium. aplace other end of hose into bucket. Open up Flow Control Valve. Move the cylinder up and down rapidly until a siphon is created. Remove fish waste and debris by lowering gravel vaccum on gracel. Adjust Flow control valve as needed for different