Comet Goldfish (Carassius auratus)
Common Name: Comet / Goldfish
Scientific Name: Carassius auratus
Origin: Washington, D.C.
Maximum Size: 12″
Tank Parameters:
Size: 75 Gallon +
pH: 6.5-7.5
Temperature: 65-70°F
Temperament: Peaceful
Breeding: Easy
Difficulty: Easy
| Parameter | Value |
|---|---|
| Origin | Washington, D.C. |
| Maximum Size | 12″ |
| Temperature Range | 65-70°F |
| pH Range | 6.5-7.5 |
| Tank Size Requirement | 75 Gallon or larger |
All images are for illustrative purposes only. Actual fish may vary due to natural differences in livestock. Inventory levels may fluctuate, especially at low volumes. If an online order cannot be fulfilled due to stock shortage, a full refund or exchange will be provided automatically.
FAQ
What is the ideal water temperature for Comet goldfish?
The ideal temperature range is 65-70°F.
Can Comet goldfish live in a community tank with other fish?
Yes, they are peaceful and generally compatible with other non-aggressive species.
How big do Comet goldfish grow?
They can reach a maximum size of 12 inches.

Joanne Ince –
Received my Comet goldfish in good condition. It’s active and stays calm in the tank. The water parameters match what was described. Easy to care for and looks healthy after a week.
Richard Lawrence –
The fish arrived quickly and seems to be adjusting well. Tank size is sufficient for its growth. I appreciate the clear information on temperature and pH requirements.
Ella Mackay –
Peaceful and vibrant. I’ve had other goldfish before, but this one is more active and colorful. The instructions were helpful for setting up the tank.