How to change water in a small fish tank

1, before changing the water for the small fish tank, be sure to intercept the water in advance. There are many ways to capture moisture, and the common method is drying. Just put the water in the sun for a few days.

2. Then pump out the old water with a pipe, and then slowly pour in the prepared new water. Do not change the water violently, otherwise it will cause fluctuations in water quality and water temperature, which is not good for fish health.

The water is usually changed once a week. If it is filtered, it can be changed once every half month.