Maintenance is a necessary part of a good aquarium keeping. Routine water changes and pulling debris from gravel helps maintain a natural balance in the aquarium environment. Aqueon Siphon Vacuum Gravel Cleaners can help to make this job easier and take less time. Just a simple up and down motion with the intake tube will quickly prime the siphon to begin water flow. Debris is pulled away with flowing water and disposed of while gravel falls to the bottom of the aquarium.