This koi is about 5 years old. He is a beautiful blue koi. He is a domestic koi. His size is about 14-16 inches in length. Due to pond size is the reason I am looking for a new home for him. He does have some white bumps on the side of him. I have never seen anything out of the ordinary from his behavior, just that those bumps are visible. Let me know if you have any questions.