change the water temperature difference in the fish tank? If the water temperature difference in the fish tank is too large, you need to measure the water temperature in the fish tank first, and then add new water according to this water temperature. If the temperature of the new water is high, you can add the right amount of cold water, if the temperature is low, you should pour the right amount of hot water. It should be noted that do not add too much water at one time, otherwise the temperature will not be easy to control, add a little stir, and then measure the temperature to see if it is almost the same.
1. Trapped water in advance: The first step of changing water is trapped water. Because the tap water just received can not be used, it must be prepared in advance. In summer, the water can be collected one day in advance and dried in a sunny place. It takes two days in spring and autumn, and three days in winter. In addition, you can also choose the way of aeration to trap water, if the dosage is not large, the time will not be very long.
2. Pumping and adding water: After the water is changed, the first thing to do is to pump out the old water. Usually, a pump can be used, or a pipe can be prepared to siphon the water from the bottom. The purpose of pumping from the bottom is to remove the residual bait and feces in the tank, so as to keep the water clean. After the water is pumped, the new water can be added. Generally, it should be poured slowly from the wall of the cylinder so as not to cause changes in water temperature.
3. Pay attention to the water temperature: It is better to keep the same temperature before and after changing the water. Therefore, the water temperature in the tank must be measured before this, and then the new water is blended. The temperature difference is within 1-2 ℃ before it can be used.
