Celestial Eye Goldfish
Celestial eye goldfish or Choten gan is a double-tailed breed of fancy goldfish that has a breed-defining pair of telescope eyes which are turned upwards, pupils gazing skyward. When the fry hatch, the eyes of young Celestials are normal but gradually protrude sideways, as in the Telescope eye goldfish, and then turn upwards within a period of six months.
The Celestial is a relatively small variety of goldfish that has a torpedo-shaped body similar to the Bubble Eye. Like the Bubble Eye, the Celestial does not have a dorsal fin. Their paired fins are of the Fantail or Ryukin type. The caudal may be half as long, to as long, as the body. They are most commonly seen with metallic scales colored various shades of orange (called 'red' by fanciers), white, or red and white. Celestials with nacreous scales are known but rarely seen. Despite their limited vision and their lack of a dorsal fin, they are active and agile swimmers. They do require some special attention since, apart from sporting easily damaged upward-oriented eyes, and having limited vision, they are also sensitive to cold water temperatures. They are unable to compete with more vigorous goldfish for food. Sharp ornaments and objects in the aquarium are contraindicated. They are best kept with other limited-vision breeds (i.e the Bubble Eye) or in a tank of their own.
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