Aqueon Aquarium Siphon Vacuum Gravel CleanerAqueon Siphon Vacuum gravel cleaners are essential tools for maintaining a healthy and clean aquarium environment. These vacuums are designed to remove debris, uneaten food, and waste that accumulate in the substrate, helping to improve water quality and prevent harmful buildup. Ideal for both freshwater and saltwater tanks, Aqueon siphon vacuums come in a range of sizes to suit small to large aquariums. To use, simply create a siphon by submerging