It is not enough to dry the water for fish farming for three hours. It should be dried for at least one to two days. Usually, according to the season, the time of drying water is different. In summer, the temperature is relatively high, and it takes only 24 hours to bask in water, 48 hours in spring and autumn, and 72 hours in winter. In addition, if there is no sun, standing and drying water can also play the effect of water trapping, but the time is longer, it takes about 5-7 days.
1. Water temperature: The first thing to pay attention to in the water for fish culture is the water temperature. Although some fish are eurythermal, they will be more active only when the temperature is kept high, and they are not easy to get sick. Not to mention tropical fish, the temperature should be at least 20-30 degrees Celsius, so that they can survive healthily.
2. Water quality: There are two main problems of water quality, one is pH, and the other is the hardness of the water body. Generally with tap water, the water quality is neutral or weak alkaline, used to raise fish is not a big problem, if some suitable for weak acid environment of fish, can also be properly adjusted. If well water is used, because it is groundwater, the hardness may be relatively high, which is harmful to fish.
3. Dissolved oxygen: Since the fish need to breathe in the water, the dissolved oxygen in the water body should also be required. The trapped water should not be heated. Although the chlorine can be removed quickly, the oxygen will be exhausted. If you want to increase dissolved oxygen, you can use an oxygen pump to pump oxygen into it.
