
Fancy goldfish
Carassius auratus · Cyprinidae
Also known as Oranda, Ryukin, Fantail
Intermediate
Cold-water, heavy-waste fish that needs volume and filtration far beyond a bowl.
- Minimum tank
- 150 L
- Temperature
- 16–23 °C
- pH
- 7–8.4
- Adult size
- 20 cm
- Group size
- 2+
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Sign in to check my tanksCare requirements
- Minimum tank volume
- 150 L
- Temperature
- 16–23 °C
- pH
- 7–8.4
- Hardness
- 8–25 dGH
- Lifespan
- 10–15 years
- Diet
- Omnivore — sinking goldfish pellets, blanched vegetables, gel food.
- Care level
- Intermediate
Origin & habitat
- Native region
- Domesticated from East Asian carp
- Water type
- Freshwater
- Biotope
- Cool, slow ponds
- Natural conditions
- Cool, hard, well-filtered still water.
Behaviour & stocking
- Temperament
- Peaceful
- Minimum group
- 2 fish
- Swims
- All levels
- Good tank mates
- Other fancy goldfishWhite cloud mountain minnow
- Avoid
- Tropical fishShrimpFin nippers
Breeding & difficulty
- Breeding difficulty
- Intermediate
- Sexing
- Breeding males show white tubercles on gill covers and pectoral fins.
- Notes
- Spring spawner triggered by warming; eggs are scattered on plants.
- Common ailments
- Swim bladder disorderDropsyIchAmmonia burn in small tanks