The Sulawesi Beach Exhibit is cared for by myself, Tim Morrissey, at Omaha's Henry Doorly Zoo and Aquarium.
The tank is roughly 20 foot wide and 3 foot deep at the front. The display is about 10,000 gallons and the reserve is as well, making for a total near 20,000 gallons.
A wave enters the exhibit every minute and a half or so, and is operated by a pneumatic air cylinder that opens and closes a flap in a large pipe. When the flap opens, about 2-300 gallons dumps into the tank.
The tank is quite simple. It uses a commercial MRC protein skimmer with ozone injection for filtration.
Supplementation is supplied by a drip of 50 gallons of kalkwasser daily. Occasionally alkalinity or calcium are boosted mannually.
The lighting consists of 9-11 1000watt metal halide fixtures with SunMaster Blue Ice bulbs (6 for the reef and 3-5 for the plants). There is also one 400watt metal halide unit with a SunMaster Blue Ice bulb.