Is it necessary to clean the stones in goldfish when changing water?

Hello: It is necessary to clean the stones in goldfish. Because the stones in the goldfish bowl will attach some tiny bacteria and algae, which will affect the water quality and the health of goldfish. There are several suggestions for cleaning fish tanks and changing water: 1. When changing water, first prepare a small basin filled with clear water (here and the changed water must be disinfected by sunshine for 3-4 days, and it is best not to contain tap water with bleaching powder), and gently remove the goldfish with small fish net and put them into the small basin. This step will hurt the fish carefully. 2. Dump the dirty water in the goldfish bowl, leaving about one sixth of the water in the container. The water left is to make goldfish adapt to the new water and make an adjustment. Take out the stone. 3. Disinfection of stones: wash the stones once in clear water, then soak them in salt water or diluted potassium permanganate solution for a while, not too long, then take them out and rinse them with clear water. 4. Disinfection of fish tank: It is almost the same as the disinfection of stone, but the fish tank can be directly exposed to the sun for several hours for disinfection without soaking in salt water or potassium permanganate solution, and then cooled. 5. Put the disinfected stone into the fish tank, cool the dried water to normal temperature, then put it into the disinfected fish tank together with the remaining one-sixth of the water, and then put the goldfish into it. 6. goldfish bowls and stones should be properly cleaned, and solutions should not be used frequently, but disinfection is also very good. If you have any questions, please keep asking. Thank you!