Coldwater Fish · Standard Goldfish / Comets
Orange Goldfish
Carassius auratus
Available in storeAvailability last updated: 02/09/2026Goldfish (Carassius auratus) is an aquarium species. Its recorded origin is Europe. Adults may reach approximately 48 cm. It is generally kept in groups of 5 or more.
Temperature Safety Tips:
- Optimal Comfort: 15°C–21°C for standard single-tail varieties like common goldfish and comets
- Avoid Sudden Changes: Rapid shifts of more than a few degrees can shock or kill your fish.
- Pond vs. Indoor: Common goldfish adapt well to outdoor ponds through winter, but backyard ponds must be deep enough so the entire volume does not freeze solid.
- Adult size
- 48 cm
- Temperature information (°C)
- 10°C - 21°C
- pH range
- 6.0–8.0
- Origin
- Europe
- Captive diet
- Feed a quality vegetable-rich flake, pellet or wafer, supplemented with suitable frozen or live foods such as daphnia, brine shrimp or appropriately sized bloodworm. Use portions appropriate to the size of the Goldfish.
- Minimum group
- 5 or more
- Minimum aquarium size
- 100 cm aquarium length
- Temperament
- Peaceful - community