This All Pond Solutions New WM-2000 mini wave maker / Powerhead has a 360 degree rotation allowing you to adjust the direction of the water current, simulating the conditions of the ocean.
Wavemakers also help eliminate "dead spots" in your aquarium. This is very important to the corals in your tank, as the waste that they produce during respiration needs to be carried away from the tissue and to your filtration system. Lack of water circulation can cause the coral to suffocate, while unidirectional current can cause the coral to become irritated and, thus to close up. Wave makers help to eliminate these problems and enhance the health and growth of your tank inhabitants. Features
 Supplied with a high-quality clip-action suction cup for easy attachment