. The amount of dissolved oxygen in the water of goldfish determines the stocking density in the fish tank. Under normal circumstances, when the goldfish is 3 centimeters long, the breeding density of 200-250 fish per square meter is better. When the goldfish is 4-6 cm long, it is better to breed 120-160 goldfish per square meter. When breeding goldfish, the dissolved oxygen in the feed water should generally be more than 5mg/L, and the minimum should not be less than 3mg/L. Containers are small and dense, which not only affects viewing, but also kills fish due to lack of oxygen.
for goldfish? The number of times to change the water for goldfish depends on the season. Generally, the water is changed once every three to four days in summer, once a week in spring and autumn, and once every half month in winter. 1-2 days before changing the water, the water should be taken out and aired for 1-2 days.
of raising goldfish for water temperature and water quality? Goldfish have strong adaptability to water temperature, but they can not adapt to drastic changes in water temperature. The suitable water temperature for breeding goldfish should be 18-26 C. If the temperature is too high or too low, it will affect the feeding, growth and reproduction of goldfish. Goldfish like weak alkaline water, and the pH value of the water body should be kept at 7.5-8.0.
