What Is The Distinct Characteristics Of Momotaro Koi???? Have you heard of Momotaro Koi? Do you know what its distinct characteristics are? Are you aware that this type of Koi Fish is grown to a huge size that makes them qualify to participate in an international competition of Koi Fish breeders? It’s true, serious enthusiasts and Koi breeders are taking so much time and effort to breed this type of Koi fish to compete, and they take pride if they win.