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In the summer, we must keep four "off."
In summer, temperatures can range from 35°C to 42°C, and the maximum temperature that yellow water (jaundice) can tolerate is up to 38°C. To manage high temperatures effectively, three main strategies are used. First, constructing artificial shade structures over Chengchi Lake helps reduce heat. These can be made using climbing plants like mung beans or loofahs, or covered with straw curtains. However, the coverage should not be too dense to allow some sunlight into the water, which is essential for aquatic life. Second, floating aquatic plants such as water hyacinths and water lettuce are introduced on the lake surface. They provide natural shade and help lower the water temperature, but their coverage should not exceed half of the lake's surface area. Third, regular water changes are necessary. The water level should be increased by 25 to 30 centimeters during summer. When temperatures rise above 38°C, replacing the surface water helps balance the overall temperature. Additionally, a microfluidic system that continuously exchanges water in and out throughout the day offers the most effective cooling.
Regarding feeding, maintaining clean and fresh food is crucial, especially for animal-based feeds, which must be free from spoilage. High-protein feed options such as quail, mealworms, and fly larvae are recommended to support the health of the yellow water. Feeding amounts should be carefully controlled—only enough to be consumed within a day. During bad weather, when appetite may decrease, any leftover food should be removed promptly to prevent it from decomposing and polluting the water.
Water pH management is also important. During summer, the pH of the pond water should be kept between 7 and 7.8. If the water becomes too acidic, quicklime can be added to adjust the pH and maintain a healthy environment.
To prevent escape, special attention must be given during sudden weather changes, which can cause stress and restlessness in the yellow water. This is particularly common at night when they might attempt to flee. During thunderstorm seasons, regular checks should be conducted on the water depth, pool walls, and bottom for cracks, as well as the condition of the drainage hole covers. Any potential escape routes should be sealed immediately to ensure the safety of the yellow water.