UP Aqua G-052 Motor Driven Aquarium Cleaner Aquarium Tool

Specially designed to work with inside aquarium filtering systems like sponge filters and submerged cup filters. Small vacuum cup cleans the gravel bed WHILE you change the water. Sponge filter completes the cleaning job! Unique valve lets you accurately control water flow - no sand or gravel will be sucked out with the guck that you remove when cleaning large or miniature tanks! Clean out decaying fertilizer the same time you make a water change to prevent algae growth. Adjust length of pipe to achieve maximum efficiency.