, relatively speaking, goldfish prefer old water, people often say that fish first water is the same reason. Old water is more stable than new water, and goldfish are more familiar with it. The stability of living environment is very important for goldfish. If the living environment of goldfish often changes, goldfish will easily get sick and die in serious cases. The same is true for the water used to
raise goldfish, whether it is tap water or spring water or other natural water, it is good to use it after drying. Drying water can remove the chlorine in tap water that affects the health of goldfish, and also allow heavy metals and other impurities to sink to the bottom of the water naturally. When taking water from the upper layer, it can reduce the damage to goldfish caused by changing water.
? If the fish tank for raising goldfish is equipped with a filtration system and an oxygen supply system, which can maintain the water quality suitable for the survival of goldfish for a long time, then there is no need to change the water frequently, or even as long as there is no problem with the water quality, it is only necessary to replenish the water regularly because of evaporation. But if the fish tank can't keep the water quality stable for a long time, it needs to change the water regularly to improve the water quality. Generally, the water can be changed once every 3 days in summer and once every 7-10 days in winter.
