Woman Koi have a tendency to have rounder heads and bellies, whereas male koi have pointed heads plus more slender bodies. Males is usually mistaken for girls when they are overfed and turn into obese. These ornamental fish have been bred with a scaleless carp imported into Japan from Germany https://www.propanraya.com/cara-merawat-ikan-koi-agar-tetap-sehat-dan-indah-di-kolam-rumah