Double Tail Goldfish: Best 10 Benefits

double tail goldfish

Double Tail Goldfish is a relatively new breed of goldfish that has become popular in the U.S. and Canada because of its unique appearance.

The Double Tail Goldfish boasts a double curly fin and two separate tails on each side.

The purpose of this breed is to have a simple-to-care-for fish. It has a broad shape and requires less food than regular goldfish.

This breed can live for about five years or produce 50 – 100 fry per year when bred three to six times per year.

The Double Tail Goldfish is not a common breed in the U.S. and Canada. It is a fancy fish and requires special care to keep it alive.

The best tank for Double Tail Goldfish is 10 gallons, with plenty of space for its long tail.

This breed originates from China and Japan, bred during the Tang Dynasty, around 600 A.D. The Chinese were able to breed goldfish with two tails because of their extensive knowledge of genetics.

The Japanese quickly learned to cross-breed double-tailed goldfish with common goldfish and eventually created the Double Tail Goldfish.

The Double Tail Goldfish is a hardy fish that can be kept in an aquarium. It requires warm water temperatures to survive and should be kept at 75 degrees Fahrenheit or higher for optimal health and beauty.

They grow best in tanks that are at least 10 gallons in size but can be kept in smaller spaces if their space requirements are taken care of correctly.

 Double Tail Goldfish Characteristics

Double tail goldfish have a variety of colors and patterns. They come in multiple colors and are readily available in white, black, red, tiger, blue and yellow.

They have a broad oval-shaped body with two separate tails on each side. Most Double Tail Goldfish have single tails that curl towards their body.

The Appearance Of Double Tail Goldfish

Double Tail Goldfish have a broad crescent-shaped body, with two tails that curl towards their bodies.

Their tails are distinct in shape and color and often double upon themselves to make a longer tail.

The personality of Double Tail Goldfish can be either very aggressive or docile depending on the tank conditions that they live in.

They are hardy fish and tolerate water temperatures at 75 degrees Fahrenheit or higher. The Double Tail Goldfish is a hardy fish and will live five years with proper care.

The Diet Of The Double Tail Goldfish

The Double Tail Goldfish is an omnivorous fish and will eat anything that it can fit into its mouth.

You can feed it commercially-produced food, or you can put fresh vegetables, earthworms, and insect larvae into their food bowls for additional nutrients.

The Breeding Of Double Tail Goldfish

You can breed the Double Tail Goldfish by putting a male and a female fish in the same tank and waiting to spawn.

After spawning, the eggs will be laid in the water and will sink to the bottom if not removed. You should remove them from the tank or risk having a lot of young goldfish running around without nutrients.

Double Tail Goldfish Care Guide


Double tail goldfish are suitable for freshwater habitats. They are carnivorous and should be given plenty of green foods, live or frozen.


Double tail goldfish breed easily with a little help from their owners. They often give birth to over a hundred babies at a time which will have to be dealt with if you don’t want your tank overrun with them.

Conservation Status

Double tail goldfish are not threatened with extinction, but their numbers are still small in the wild despite their popularity. There is a captive breeding program in place to bring back their numbers.


Double Tail Goldfish live for five years or longer.


Double tail goldfish should reach a length of up to three inches and weigh up to 1 ounce.

Swimming Level

The swimming level is moderate.

Best Tank Mates

The tank mates should be non-aggressive fish that can adapt to similar water conditions and not out-compete the double tail goldfish for food.

Double Tail Goldfish Price

You can buy the Double Tail Goldfish online or at pet stores for an average price of $5 – $17, depending on the color and number you get.

Tail Types of Goldfish

There are three basic types of goldfish tails and a few variations.

Single Tail

The single tail is the most common type of tail found on goldfish. It comes in both straight and sickle shapes and can be long, medium, or short. Sickle-shaped tails are often called Fantails or Crowntails by freshwater enthusiasts. Sickle-shaped tails usually curl towards the head of the fish and are usually found on smaller fish.

Double Tail

The double tail is sometimes called a wavy tail. It is the result of two separate tails coming off of one side. The two tails come up and slightly over the fish, then curl toward its head. When viewed from above, double tails often split into two distinct tails at their tip. This type of tail is sometimes used to distinguish true double tail Goldfish from other types of goldfish with similar qualities.

Triple Tail

The tripletail is also called a cattail (due to its resemblance to the cat’s tail). It is a double tail with three separate tails coming off of one side. The tails can be long, medium, or short. Each of the three tails can be curly, straight, or sickle-shaped, like a standard double tail Goldfish. A true triple tail Goldfish will have all three tails curled toward its head when viewed from above.

Hybrid Tail

Some Goldfish varieties have their tails curled toward the head. An example of this is the Veiltail variety. These goldfish have been crossed with other types of goldfish, and they no longer possess the characteristics of the original Veiltail itself.

Curled Tail

A curled tail is just one type of curl that a single tail can possess, but it has become synonymous with any fish with a curled tail. The curled tail is most often seen on the Midas, Pompom, and Fantail goldfish varieties.

Wavy Tail

A wavy tail is quite distinct from other types of tails. A smooth, undulating movement easily identifies it in the middle of its tail. This type of curl sometimes comes with a different body shape and color patterns than other types of goldfish.

Benefits Of Double Tail Goldfish

Here Are The Best 10 Benefits Of Double Tail Goldfish

1. They are long-lived: Most goldfish live for 5 to 8 years, but with proper care, your Double Tail Goldfish can live from 10 to 15 years.

2. They are cheap: Though the price of goldfish varies, it is still cheaper than most other fish varieties. The Double Tail Goldfish is no exception compared to other types of goldfish.

3. They have a cute appearance: Double Tail Goldfish are usually double the size of regular goldfish. This makes them easy to identify and provides an opportunity to add color and excitement to any aquarium.

4. They don’t require large tanks: Double Tail Goldfish don’t grow as large as other types of goldfish; they only need relatively small tanks to live comfortably. A good tank for one Double Tail Goldfish can also accommodate several other fish.

5. They have interesting features: Double Tail Goldfish have more than just their interesting tails. Their large eyes, round faces, and sparkly scales often draw the attention of other fish and their owners.

6. They are social: Double Tail Goldfish love the company of other goldfish and can live with a large variety of them in the same tank. You can even put them in tanks with other species, but only if you know that your pet fish won’t kill them.

7. They are peaceful: Though they can live in the same tanks as other species, they don’t bother their tank mates. Double Tail Goldfish prefer to keep to themselves and their own space.

8. They are active: The Double Tail Goldfish is naturally active and doesn’t need special attention or a lot of extra attention compared to other fish varieties.

9. They are long-distance swimmers: Double Tail Goldfish can travel long distances when needed because of their long, thin bodies.

10. They are great for kids: The Double Tail Goldfish’s size, lively nature, and shine can be a lot of fun for kids to watch and care for. Their long life span also gives parents some peace of mind about the fish’s well-being for a few years, even if the child loses interest or forgets to feed them.

How To Tell If A Goldfish Is Sick?

Health issues vary depending on the type of goldfish, but usually, they are issues with the gills. If you see any blackish deposits on your goldfish’s gills, then your fish may have a condition called Velvet. This condition can easily spread to other fish in your tank, and if not treated, it usually results in death. Velvet affects the gills and makes them look black instead of red or orange.

What Kind Of Goldfish Has Two Tails?

Goldfish of the Fancy-Tail variety is also known as the Veiltail variety. These goldfish have been crossed with other types of goldfish and no longer possess the characteristics of the original Veiltail itself.

How do Big Do Double-Tailed Goldfish get?

The size of the fish will depend on how long the tail is. Short tails are normally found on smaller fish, while longer tails can be found on any size.

Special Notes

Some goldfish varieties have tails that curl to the fish’s body and sometimes split into two separate tails when viewed from above. This is known as a double tail. Breeders cross this variety with other varieties to create hybrid fish, which are not true double tails.

Sometimes the tail will curl toward the head of the fish, resulting in a wavy tail. This is known as a tripletail, and it is very similar to a wavy tail that has been split into two separate sections.


Goldfish are relatively small fish that require regular feeding and clean water to survive. You should make sure that you provide them with a place to live that is at least twice the size of their body. The water should be non-chlorinated, and it shouldn’t have any nasty smells or chemicals. This will help your fish stay healthy, and it will also reduce any chances of illness. Thanks for reading this article.

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