Jeeco Aquarium Vacuum Gravel Cleaner is nice, instead of manually starting the suction. I use this and a 5gallon bucket weekly to clean gravel/do water changes on my 55gal tank. I use the pump button and hold in rt to get the siphon started, suck up some gravel a few inches up tube, then fold or kink the hose with lft hand to stop suction and release the gravel back. Then unkink to let all the lighter nastiness float up and get sucked out.