Ranchu Goldfish (Carassius auratus)
Fish in the family Cyprinidae. Moderate care. Freshwater.
Quick facts
Scientific nameCarassius auratus
FamilyCyprinidae
Also known asRanchu, King of Goldfish
Care levelModerate
Reef safetyFreshwater
TemperamentPeaceful
Dietomnivore
Adult size7 in
Minimum tank size30 gallons
Water parametersTemp 65-74°F, pH 7.0-8.4, GH 5-19 dGH
Appearance
Dorsal-less fancy goldfish with arched back, downturned tail, and pronounced head growth (wen).
Difficulty and care for the Ranchu Goldfish
Moderate
Origin and habitat
Japan (domesticated)
Keeper notes
Peaceful but a weak, slow swimmer with no dorsal fin; cannot compete with faster goldfish and is prone to swim-bladder issues.
Log Ranchu Goldfish in your reef tank
Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Ranchu Goldfish alongside everything else in your reef.
