Introduction to the open laboratory: Qingdao Underwater World is currently the only underwater world in China with an open laboratory. Visitors can observe the daily work of the aquarium technicians through the glass curtain wall of the laboratory. The laboratory of the Aquarium Department is one of the core departments of the underwater world. Mainly engaged in the following work: 1. Water quality analysis and testing; 2. Nutrition, health and disease control of museum organisms; 3. Research on the habits of marine organisms; 4. Cultivation and protection of rare marine organisms.