This little water foutain pump designs for tabletop fountain,bedside fountain,small indoor fountain,patio ponds,outdoor garden fountain or small pool. A general purpose pump with unlimited uses suitable for the artist, creator or inventor, pond, aquarium or in hydroponics, people may use these little pumps on the lowest setting to feed plants,or for breaking the water surface for oxygen in a fish tank,or make a decent fountain for small pond. Adjustable Flow Rate - Designed with a adjusting knob, allowing to adjust the water flow rate, the maximal flow rate can be up to 216GPH.With brushless motor ultra quiet, the relible and duarable motor does not produce much noise, giving you quiet environment. Run smoothly, low noise, long working life compared with brush motor, keep it quiet and not scare the fish when use it on small pond or fish tank.Plenty of power in the small unit to move water up to 5.24ft. Detachable & Cleanable - No need any tools to detach it, easy to seperate, easy to clean.100% safe,non toxic,non- radioacitivy design with waterproof for kids aged 3-99+. Compact and Mini Size Waterfall Pumps - Dimensions:2.75" x 1.96" x 2.36" (L x W x H).Compact design is great for space-saving on your tabletop water fountain. The maximal flow rate can be up to 216 gallons per hour. Lift height can be up to 5.24ft. Suction cups - 4 individual powerful suction cups that hold the fountain pump securely on the right side of aquarium, vertically or horizontally. water change pump has 2 nozzles 0.51"and 0.33" for optional.