In my case my tank was too shallow and the pump too weak to install and service a siphon. If I used my mouth to fill the tube with water it would work, but with my shallow reservoir there is too much of the long tube protruding above the surface compared to the volume the pump is moving. It's also a lot more than I expected.
Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review
Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review
π U-BCOO Aquarium Gravel Cleaner Fish Tank: Manual Siphon for Efficient Filter Gravel Cleaning and Water Change in Tanks
22 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
π Spectrastone Shallow Creek Regular: Enhance your Freshwater Aquariums with a 5-Pound Bag
9 Review
Miukada 5lb River Rocks, Pebbles, Decorative Polished Gravel β Natural Mixed Color Stones
9 Review
Aquarium set 6.8 l (lighting, cover, filter) Tetra Cascade Globe Duo Waterfall black
19 Review
π AquaticHI 27-Inch Aquarium Tongs - 100% Reef Safe - Multi-Purpose for Fresh & Saltwater Fish Tanks - Clip Plants, Spot Feed Fish & Coral - Keep Hands Dry
9 Review