There are two available Feed modes. A selector switch on the rear panel allows selection of either all pumps off, or only the main pump off during feeding. When the Night Mode sensor is used, the pumps are placed in a gentle mode when the lights go off, creating less turbulence, thus simulating the calming of a reef at night. Invertebrates need changing water movement to ensure nutrients are carried to them, and waste products are carried away. Changing currents improve live rock's ability to convert ammonia to nitrite, to nitrate and then nitrogen gas.
Fish love the excitement of changing water flow.
All the experts agree Water movement in your aquarium is one of the most important factors in aquarium health, fish as well as coral . Wave makers provide your aquarium with the means to control water circulation. Wave makers create surge and turbulence which keep your tank healthy. Corals rely on water currents to provide food and oxygen as well as removal of waste. Algae grows in areas where circulation is poor.