to change a little water in the

fish tank every day? It is not good to change a little water in the fish tank every day. The frequency of changing water every day is too high, so the new water will stimulate the fish, causing it to be in a state of stress reaction for a long time, not only is it not easy to adapt to the environment, but also may die, and it is not conducive to the stability of the ecosystem, beneficial bacteria can not grow and reproduce. Therefore, the water is usually changed once a week, and if the water quality is good, it can be changed once a half month.

2. How to change the water

for the fish tank 1. To change the water for the fish tank in advance, first of all, the tap water should be connected in advance and put in a sunny place to dry. One day in summer, two days in spring and autumn, and three days in winter. The purpose of drying is very simple, it is to let the residual chlorine in the water dissipate.

2. Pumping and adding water: After the new water is prepared, the water can be changed. First of all, one end of the water pipe is connected to the bottom of the water, and the water at the bottom of the water is pumped out by siphoning, which has the advantage of cleaning up the dirt at the bottom of the water by the way. After part of the water is pumped out, new water can be slowly added from the wall of the tank. The water must be added steadily to avoid the fluctuation of water quality caused by violent water change.

3. Precautions: The amount of water changed each time must be strictly controlled, usually about one quarter, not more than one third at most. The temperature of new water should also be the same as that of old water, so as to avoid excessive temperature difference, which is harmful to the health of fish.