The water for raising fish does not have to bask in the sun. The purpose of basking in the sun is to let the chlorine in the water volatilize out, so as not to affect the health of the fish, otherwise it may make them feel uncomfortable, or even die. In addition to the sun, you can also use oxygen or drugs to remove chlorine, but the method of drying is relatively simple, and there will be no side effects.
1, drying trapped water: Most of the water used for family fish farming is tap water, which is very clean, but when disinfected, it will contain residual chlorine, which is harmful to the health of fish. Therefore, usually one or two days before changing the water, it is necessary to put the tap water in the sunny place to dry, if not, it is necessary to dry the water a week in advance, and then it can be used for a week.
2. Raise the water temperature: The water temperature must be well controlled for fish farming, and the temperature should be adjusted according to the needs of the fish. If tropical fish are raised, the temperature should usually be kept between 20 and 30 ℃. In addition, when changing water, the temperature difference between new water and old water can not be too large, generally using hot water and cold water to control the temperature, so as not to affect the health of fish due to temperature changes.
3. Proper oxygenation: If the oxygen content of the water body itself is relatively low, long-term anoxia of the fish may also cause problems. Therefore, it is necessary to properly oxygenate the water. Generally, if the oxygen pump is used, it should be opened for 2-4 hours every day, and if it is summer or rainy weather, it should be oxygenated for 4-6 hours.
