The Dymax Slim Flow filter is an external filter designed to be mounted on any side of the aquarium. Unlike the traditional internal powerhead filter, this hanging filter does not take up space in the aquarium. Additionally, the waterfall effect provides high levels of aeration filtration and increases oxygen levels for fish, corals, plants, and other living organisms in the aquarium. The Dymax Slim Flow filter comes equipped with an adjustable intake tube to enable it to reach closer to the bottom of the aquarium, as well as a handle to control water flow to reduce filtration during feeding time.