Comet Goldfish - Tips and Characteristics

Quick Statistics - Comet
Country of Origin: USA
Family: Cyprinidae
Scientific Name: Carassius auratus
Environment: Freshwater fish
Temperature: 55° - 78°F
Type: Single Tail
Diet: Omnivore
Food: Pellets, flakes, live food, veggies and fruit
Adult Size: 10-12" (inches)
Lifespan: 10-15 years or more
Care Level: Easy for beginners
Temperament: Friendly and social

Do you know anyone who owns a Comet goldfish? This is one of the most popular goldfish varieties in the United States, also because it was developed there, in the 1880's. This is an excellent choice for beginners.

The Comet goldfish is very similar to the Common and can be distinguished by its long, single and deeply forked tail fin. Large specimens of Comet have a tail that is almost equal to its body length.

You must know that Comets are the most agile goldfish variety. They are very hardy and can be kept in outdoor ponds or aquariums. Being very active, it's usual to see your comet race back and forth in the tank. In a playful manner of course.

Yellow, red, orange, white or red-and-white colors are available for the Comet. They can live up to 10-15 years in optimum conditions.

You also need to know...

Comets are smaller than the Common goldfish. Sarasa is one of the different types of comets. They are very beautiful and inexpensive.

Comets can grow up to 6-8 inches in aquariums and over 12 inches in outdoor ponds. They eat almost everything you give them as food.


Do you want some tank mates for your fast Comet? The best goldfish to keep with Comets are Commons and Shubunkins. Because they are single tails, very active and swim faster. It's not recommended to mix with twin-tails like Oranda, Black Moors, Veiltail, Telescope Eye or Ryukin goldfish.

Love to you,

Image credits to: Sheffield Tiger @