1. How to change water and clean the small fish tank The small fish tank should be changed frequently, usually once every three days. First, the old water at the bottom of the tank should be pumped out, and then new water can be injected. When pumping water, you can adjust the position and take away the dirty things in the corner of the bottom of the cylinder, so as to achieve the purpose of cleaning. Usually, it takes five to seven days to change the water, and only one quarter of it needs to be changed at a time. If too much water is changed, the new water will cause irritation to fish, but it will be harmful to their health.
2. What should we pay attention to when changing water for small fish tanks1. Trapping water in advance: Generally, tap water is used for fish farming at home. Although this water has no pollution, it contains residual chlorine, which will be harmful to the health of fish. Therefore, it is necessary to trap the water in advance and put the water in the sun for one day, so as to dissipate the residual chlorine and ensure the safety of the water body.
2. Pay attention to water temperature: Pay attention to water temperature when changing water. Temperature change will stimulate fish to some extent. Usually, new water is 1 ℃ higher than old water, but the temperature difference should not be too large. It is best to keep the temperature consistent before and after changing water, so that fish can adapt more easily.
3. Clean properly: Clean the fish tank properly every time you change water, pump away the dirt at the bottom of the tank, and then add new water from the tank wall, so that the water quality will remain stable. If you don't pay attention to cleaning, the dirt will accumulate more and more, which will pollute the water body.
