Gravel cleaners are the most important aquarium tool! They provide a means of siphoning debris out of aquarium gravel while performing vital regular partial water changes.
We have tried all of the 25' and 50' gravel vacuums we sell and the one we use in our fish room is the Marina Aqua Vac. The Marina Aqua Vac is the only brand with quality fittings that last without leaking.