UNDERGROUNDAQUARIUM
Goldfish & Coldwater

Ryukin Goldfish

Carassius auratus

A deep-bodied fancy goldfish with a pronounced shoulder hump and flowing fins.

Water
Freshwater
Temperature
65–75°F
pH
6.5–8
Hardness
5–20 dGH
Max size
8 in
Min tank
30 gal
Temperament
Peaceful
Social
Social (2+)
Swim level
All
Diet
Omnivore
Care level
Beginner
Lifespan
10-15 years
Breeding
Egg-scatterer
Suitability
Common
Origin
Cultivated (East Asia origin)

A hardy, rounded fancy goldfish recognizable by its high back and graceful tail. Produces a lot of waste, so it needs robust filtration and roomy quarters. Mixes best with other slow fancy goldfish.