As far as the koi is a living thing. it sometimes catches a disease. However, it is possible to protect the koi from diseases by checking the condition of the koi's health regularly as we human do.

As the main cause of a disease, a sudden change in environment is cited. Special attention should be paid to an excessive difference in water temperature, and an exchange of massive water for cleaning.

You can find out how the koi is by seeing its daily swimming behavior. When all the koi of the pond are in good health, they freely swim all over the pond in schools, and they rush for feed. If something should be wrong with the pond, or the koi should be affected with a disease, they show unusual swimnrlng behavior. When you see a school of koi get together at a place, it is a sign of abnormality in water quality or in health. When you see the koi gasping at the surface of the water or flocking around the inlet of water, it is a sign of oxygen deficiency.

Careful attention is also necessary to the swimming behavior of each individual of the koi. The koi makes a quick movement, swims unsteadily, stops swimming at the surface of the pond, and so on. You have to become aware that the koi is complaining of a pain. In these cases, please get in touch with us for consultation as quickly as possible.