If you want to raise fish with tap water, you must dry the water for a few days. Although tap water is disinfected water, there will be no pollution, but there will be residual chlorine residues in the disinfection process, although the content will not be harmful to human body, but it is a threat to fish, so we must carry out water trapping. Generally, the time of being trapped in water is 1-2 days, too long may also breed harmful bacteria, which may cause fish to get sick after changing water.
1. Water change interval: When changing the water for the fish, you must pay attention to the water change cycle. Changing too frequently will stimulate the fish, causing it to have a stress response. Changing too lazily will lead to lower water quality, which is also harmful to the health of the fish. If there is a filter, you can change the water once half a month, if not, you usually need to change it once a week.
2. How much water to change: The amount of water to change is generally about one fifth to one fourth. Never change it all. In this way, it is not easy to control the water temperature and water quality. Once there is a big fluctuation, it will endanger the lives of the fish. If you don't change the water frequently, you can also change one third at a time, which is the maximum amount.
3. Note: If the fish is sick, the water change cycle should be adjusted, because the water quality is often poor at this time, and the number of harmful bacteria is large, so it is necessary to reduce the density by changing the water to prevent the deterioration of the disease, so the water should be changed every other day.
