Galaxy Koi BettaA male Galaxy Koi Betta is a fish recognized for its unique, marbled "galaxy" color patterns featuring swirling blues, reds, white, and metallic iridescence, inspired by koi fish. These distinctive markings are created by a marble gene, resulting in a unique color layout for each individual. With their striking appearance and unique genetic traits, Galaxy Koi Bettas are prized for aquariums, especially in nano tanks. Appearance & Genetics Marbling: