is not changed for a long time, the excessive change of the acidity and alkalinity of the water body and the dissolved oxygen will cause the fin congestion of the goldfish, and when the dissolved oxygen is insufficient, the floating head of the goldfish will occur. At this time, it is necessary to change the water in time. When raising goldfish, it is better to check the water quality regularly and change the water regularly.
of temperature and water temperature in a short period of time can easily make goldfish sick, including fin congestion. In this way, people need to pay attention to keeping the water temperature stable when raising goldfish, such as when changing water, try to make the water temperature of new water and old water consistent to avoid changing the water temperature because of changing water.
water is not dried enough or the use of drugs is unreasonable, which can cause the fin congestion of goldfish. In this way, people need to pay more attention to the use of water, for the treatment of goldfish medication must be used according to the amount and non-essential medication when trying not to use drugs.
When the living environment of goldfish changes, goldfish will also appear fin congestion when they are frightened and stimulated. This requires people to try to create a quiet and stable environment for goldfish when raising goldfish. When the
