- Unique Spiral Impeller Design: The aquarium siphon features a spiral impeller that increases space in the rotating chamber, reduces wear, and eliminates the need for oiling, ensuring longevity and efficiency. - Versatile Water Changer: This practical tool serves as both a water changer and vacuum, thanks to its retractable design. It is adaptable to any aquarium size, making it suitable for various setups. - Battery-Powered Convenience: Our aquarium gravel vacuum cleaner operates on 2 C batteries (not included), providing a safe and hassle-free cleaning experience without the limitations of cords. - Durable and Eco-Friendly: Constructed from premium ABS material, this aquarium vacuum cleaner is durable, safe, environmentally friendly, and odourless, making it a sustainable choice for your cleaning needs. Use Cases: 1. Routine Maintenance: Regularly change and clean your aquarium water with ease, ensuring a healthy environment for your aquatic life. 2. Quick Cleanup: Effortlessly remove debris and waste from the gravel during feeding or after maintenance tasks, helping to keep your aquarium pristine. 3. Compatibility: Perfect for freshwater and saltwater aquariums of all sizes, making it an essential tool for both hobbyists and professional aquarists. Experience efficient cleaning with our reliable aquarium siphon, designed to enhance your aquarium maintenance routine while prioritizing safety and user-friendliness.