1. Signs

before death of koi carp There are many signs before death of koi carp, some of which may appear body tilt, reduced frequency of gill cover activity or unnatural swimming, looking crooked. Others will not mix with other fish and lie still at the bottom of the tank all the time. If the breeder feeds or teases them, they will also be unresponsive and refuse to eat.

There are also koi that will return to light before they die, that is, koi that have been ill for a long time will suddenly become normal, and the breeder will think that their condition has improved, but in a short time, they will die directly. There are many reasons for the

death of koi carp, the more common is the water quality problem, if the water quality is too poor, it is easy to make koi carp infected with bacteria, and eventually die.

Also because of the temperature difference, although Koi can adapt to a wide range of water temperatures, but they are more sensitive to sudden changes in water temperature, if the temperature difference exceeds 3 degrees Celsius, it is likely to cause their death. It

may also be hypoxia. Koi will die soon after hypoxia, but it is difficult for breeders to see the cause of death. Because Koi fish will float in the absence of oxygen, but some Koi fish will not float in the absence of oxygen, so each fish has different characteristics after lack of oxygen, it is difficult for breeders to grasp. It is

also possible that the wrong medication, such as the wrong medication or too much medication, will cause the sudden death of Koi.