1. Add more "cooked water" and less "clean water". Add tap water, which must be used after aeration. The water color is slightly green or light maroon red, the water depth is 10 to 20 cm, and the pH value is 7 to 8;
2. When the water temperature is too high in summer and autumn, take measures such as water supplement and sunshade to control the water temperature not to exceed 30 ℃ to prevent heatstroke and tail scald;
3. The goldfish formula feed or pellet feed should be fed at a rate of 70% full. The leftover food in the pond should be avoided. The feeding times are generally 2-3 times a day. The disease prevention and control focuses on the prevention of scalding tail disease, gill rot disease, protoparasitic disease and green mud moss;
4. At the same time, do a good job in preventing hypoxia, heatstroke, poisoning, birds, rats, cats and other enemy attacks.