Goldfish is a kind of small animals with high ornamental value. Many people will raise some small animals at home. How often is the best time for goldfish to change water? A good living environment can ensure the good growth of goldfish, which is the most correct way to raise goldfish.
How often does goldfish change water
In order to keep goldfish well in summer, we should pay attention to the water, food and control of fish diseases. Goldfish water in winter will not be as bad as in summer. It is not necessary to change water so frequently. However, when the goldfish came to the water surface to drink, it indicated that the water in the tank was lack of oxygen, and the goldfish was barely maintaining their life, so they had to replace with new water. After changing into new water, you can put it in the sun for a few days, or you can keep half of the water in the fish tank and add half of the new water. When changing water, the temperature difference should not be too large. If it is too cold, add a little hot water. It is better to keep some aquatic plants in the fish tank, because photosynthesis can produce oxygen.
In winter, goldfish can be fed with dried fish worms and egg yolks that are dried in summer. Millet, sesame, fish meat, dried noodles and steamed bread can also be fed. It is best to feed some small worms with long and thin earthworms. When feeding, the amount should be from small to large, otherwise the goldfish may be propped up. In this season, due to the lack of oxygen in the water, the infection of diseased fish and water with bacteria, or the stimulation of water with too large temperature difference, the incidence is higher. After goldfish get sick, some don't eat, some grow white mould like things all over their bodies, some rot their tails and fins bit by bit. When the goldfish gets sick, it can be put into fresh water with sufficient oxygen.
The place where the fish tank is placed should have proper sunlight and good ventilation; direct sunlight should be avoided in summer and more sunshine time in winter. From this we know that not all water is suitable for goldfish's life. The most suitable water for goldfish's growth is old water. The so-called water cultivation is the process of transforming new water into old water.
It has been very clear how long it takes to change water for fish farming at home. The density of fish is the basis for long-term maintenance. If some fish are eliminated due to over density, no new fish will be added. In aquarium fish farming, it is forbidden to turn the bottom sand in large area, thoroughly clean the filter cotton and thoroughly wash the filter, which is easy to damage the established nitrification system. The collapse of nitrification system will lead to the loss of self purification function of water.