Lee’s Stretch Gravel Vacuum (Mini, 9″ to 17″) – An extendable gravel cleaner that adjusts in length to suit various tank sizes (from small betta tanks up to deeper aquariums). It has a self-start siphon – just jiggle to prime – and the rigid tube telescopes from 9 inches to 17 inches for added reach. This makes gravel cleaning flexible and convenient, ensuring you can get into all areas of the tank. It’s perfect for hobbyists with multiple aquariums of different heights.