The Calico Fantail (Carassius auratus) is a beautiful and vibrant type of goldfish, distinguished by its eye-catching calico color and graceful tail. This species is a peaceful and sociable creature, requiring a well-planted tank with appropriate water conditions and pH levels. With an average lifespan of 10 to 15 years and a maximum length of 6 inches, the Calico Fantail brings a touch of vibrancy and grace to any freshwater aquarium.