Scientific Name: Carassius auratus The Black Ranchu Goldfish is a distinctive fancy goldfish known for its smooth back, rounded body, and rich black coloration. Often called the “king of goldfish,” the Ranchu lacks a dorsal fin and features a fleshy head growth called a wen, giving it a unique and elegant appearance. Scientific Name: Carassius auratus Temperament: Peaceful Diet: High-quality goldfish pellets, flakes, vegetables, and frozen foods Minimum Tank Size: 30 gallons Temperature: 65–75°F (18–24°C) pH: 6.5–7.5 Adult Size: 5–7 inches Behavior: Black Ranchu Goldfish are slow swimmers and do best with other peaceful fancy goldfish varieties. They prefer aquariums with strong filtration, stable water conditions, and open swimming areas without sharp decorations. Notes: Assortment includes a mix of colors and patterns; Exact colors and markings will vary; Stock photo used; fish received may differ.
