The pearlscale or chinshurin in Japanese is a
spherical-bodied fancy goldfish with finnage similar to the fantail. Pearscale
or pearlscale Goldfish originated in the early 1900s and it is one of the more
recent additions to the fancy goldfish family.
Quick stats of Pearlscale:
- Depth of body to be greater than 2/3 of body length
- Scales to be domed
- Dorsal fin to be single, all other fins to be paired.
- Caudal fin to be divided and forked and held above the horizontal.
- Extremities of fins to have a slightly rounded appearance.
- Minimum length of body to be 5.5 cm (2¼ inches).
Temperament and care of pearlscale goldfish: Pearlscales are egg shaped with internal organs
crowding the creature's compact body, therefore overfeeding should be avoided.
Pearlscales are very sensitive to cold water and should not be exposed to
temperature readings below 55°F (13°C) and are also quite vulnerable to pH
changes and should not be exposed for long periods to a high acidity or
alkalinity environment.
Breeding pearlscale goldfish: Due to their delicate scales and the risk of injury
during natural spawning, it might be advisable to employ the hand spawning
method with pearlscale goldfish.
Choosing pearlscale goldfish: The best pearlscales have a body that is extremely
rounded. The body should have a depth of at least 2/3 of its length.
Sources:
http://en.wikipedia.org/wiki/Pearlscale
http://thegoldfishtank.com/pearlscale-goldfish
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