Water temperature: ACIPENSER sinensis is a warm-water fish, which adapts to a wide range of water temperatures. Under the condition of artificial culture, the survival water temperature of ACIPENSER sinensis is 0 ~ 37℃, the suitable growth water temperature is 13 ~ 25℃, and the optimum growth water temperature is 20 ~ 22℃. The suitable water temperature for parent sturgeon spawning is 17 ~ 24.5℃. After winter, when the water temperature drops to 9 ~ 6℃, the Chinese sturgeon eats less, stagnates and even loses weight. Before and after beginning of spring, the water temperature gradually rose to 10 ~ 13℃, and a small amount of food began to be eaten, and the growth was slow. After Tomb-Sweeping Day, the water temperature rose above 65438 05℃, and the feeding became active and the growth accelerated. When the water temperature reaches 33 ~ 38℃, the Chinese sturgeon cannot move normally. Oxygen content: ACIPENSER sinensis requires high dissolved oxygen, which is generally above 5 mg/L in water. If the dissolved oxygen in the water drops to 4 mg/L, the appetite of Chinese sturgeon will decrease. When the dissolved oxygen continuously drops to or below 3 mg/L, the food intake of ACIPENSER sinensis decreases rapidly, even stops eating, which leads to slow activity, coma and even suffocation in severe cases. It is worth pointing out that the fat water with a wide range of dissolved oxygen is not suitable as the water source for the cultivation of Chinese sturgeon larvae and juveniles. PH value: ACIPENSER sinensis is suitable for living in weak alkaline water with pH value of 7.0 ~ 8.0. When the pH value drops, it means that the carbon dioxide in the water increases, the acidity increases and the dissolved oxygen decreases, which is not good for the Chinese sturgeon which needs higher dissolved oxygen. When the pH value is too high, it will increase the toxic effect of ammonia nitrogen in water, which is also unfavorable to the culture of Chinese sturgeon. Salinity: ACIPENSER sinensis is a kind of euryhaline fish, which has a wide range of salinity tolerance. Under natural conditions, it moves between salt water and fresh water, breeds in fresh water and grows in seawater. Light intensity: In the vertical swimming stage, fry have strong phototaxis. After turning to benthic organisms, phototaxis disappears. Generally, the light intensity has no obvious effect on the breeding of young sturgeon, but to avoid the sharp rise of water temperature caused by direct sunlight in summer, shading facilities should be installed above the breeding pool. Bottom material: young sturgeons and young sturgeons have high requirements for bottom material, and the bottom of the pond is required to be smooth and pollution-free; Adult sturgeons have no strict requirements on sediment, as long as it is sediment. Transparency: Transparency reflects the quantity of plankton, mud and other suspended substances in water. In the breeding stage of larvae and juveniles, the transparency should be controlled at 40 ~ 60 cm, the excreta should be removed in time and the daily management should be strengthened. In the feeding stage of adult sturgeon, the transparency can be controlled at about 30 cm to meet its requirements.