to feed the small goldfish, generally every 5-7 days needs to change the water. However, when feeding, the frequency of water change should be determined according to the specific situation. For example, the more young goldfish are fed, the more waste they will produce. When more excrement is found, water needs to be changed in time. Not long after the water is changed, the owner feeds too much to the small goldfish, which causes the small goldfish to be unable to finish eating. In the case of too much residual food in the fish tank, in order to avoid the re-pollution of the water, it is also necessary to change the water again. In short, the water in the fish tank should be kept clean to avoid serious water pollution leading to the illness of the small goldfish.
should the little goldfish pay attention to when changing water? If there is a water purifier at home, you can directly use the water in the water purifier to change the little goldfish. If it is tap water, then it needs to be exposed to the sun to sterilize, because tap water contains chlorine, so it needs to be exposed to the sun to sterilize before changing the small goldfish. You only need to replace one third of the original each time, not all of them. The water should not be changed frequently to avoid the discomfort of the small goldfish. Also note that there is a return water, although the upper part is very clear, but will make many green algae sink to the bottom of the fish tank. This water tends to make the fish sick and needs to be replaced altogether.
