How to change water for goldfish

1. Fill the basin with tap water and expose it to the sun for more than 3 days to remove the residual chlorine inside;

2. Prepare spare small fish tanks and colander. If there is no small fish tank, use a bowl or glass.

3. Pour the water dried in the first step into a small fish tank for later use;

4. Take the fish out of the big fish tank quickly, and avoid the fish jumping out in the process;

5. Take the fish to a small fish tank with clear water and wait for the next step to go home;

6. Dump the waste water in the dirty big fish tank and wash it in the pool;

7. Pour the water into the cleaned big fish tank, pour the fish and water in the small fish tank into the big fish tank and change the water.