What Are the Smallest Goldfish Breeds

Are you thinking your Goldfish is not getting big enough? Do you know there are different small breeds of goldfish? Is your goldfish having problems with growth, or is it also a small goldfish breed? Let’s talk about the smallest goldfish breeds in this informative piece.

The smallest species of goldfish is the twisty-tailed goldfish that grows to about 6 inches. There are also other smaller breeds of goldfish like the butterfly goldfish, the double-tailed goldfish.

List of Smallest Goldfish Breeds

There are several small goldfish breeds. These breeds can be a lot smaller than some other species of goldfish. Some aquarists prefer and rear these breeds because of their small size.

Here are some of the smallest breeds of goldfish;

  • Twisted-tailed goldfish: The twisted-tailed goldfish is the smallest breed of goldfish. It grows to about 6 inches in its mature adult stage. The body shape takes the shape of an egg, except the tail that takes the shape of a fantail.

The twisted-tailed goldfish swim gently and eat a wide variety of food. The fish love to stay in shallow waters and have a size range of about 4 to 6 inches. They have a lifespan between 10 to 15 years.

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Twisted-tailed goldfish are not fast swimmers, making them incompatible with some tankmates. They are gentle, hardy, and highly tolerable fish but can be picky when having tankmates. They come in different colors like red and white, orange and white, red, orange, etc.

  • Butterfly telescope goldfish: The butterfly telescope goldfish is another breed of small goldfish. The fish got their names from the butterfly shape of their caudal fins. This goldfish breed has bulging eyes that you can easily view from above.

The butterfly telescope goldfish have their caudal tail spread to about 180 degrees or less, depending on the fin’s weight. Butterfly goldfish usually grow to a small size of about 5 inches. They can also exceed this range when provided with adequate requirements and reach a maximum length of about 8 inches.

The butterfly telescope goldfish can live for 10 to 15 years under the right conditions. Then can also reach and exceed 20 years in some cases, depending on their health capacity. They swim gracefully as they use their beautiful tails to surf the waters.

  • Ryukin: The Ryukin also comprises the list of small goldfish breeds that you can keep in your aquarium or pond. It is a very hardy breed of goldfish and can tolerate a wide range of conditions. This goldfish comes with a pointed head and pronounced hump at the back.

The Ryukin can either be short-finned or long-finned with a triple or quadruple tail. It has a high dorsal fin and a caudal fin that is often twice the body’s length. The short deep-bodied fancy goldfish can come in different colors that include white, silver, black, orange, red and white, grey, etc.

The Ryukins usually grow to about 8 inches, while some grow to about 10 inches in commercial ponds and large aquariums. Ryukin goldfish can live for about 10 to 15 years under adequate conditions. It is also not uncommon for them to exceed 20 years of age.

  • Double-tailed goldfish: The double-tailed is a variety of fancy goldfish that comes in small size. The goldfish got its name from its undivided double fin tail that curls at the end. It is a distinctive breed of goldfish with its horizontally spread-out tails behind the fish.

This goldfish breed has an egg-shaped body with an elongated dorsal fin and flowing tail. They also come in varieties of colors, including black, calico, orange, yellow, etc. They are a hardy breed of goldfish and are suitable for goldfish ponds.

The double-tailed goldfish can live for about 10 to 15 years and even exceed 20 years if properly cared for. They can also grow to about 8 to 10 inches under the necessary conditions. The double-tailed goldfish can grace your tank with its colorful appearance.

  • Single-tailed goldfish: The single-tailed goldfish are close in appearance to the double-tailed goldfish with slight differences. As the name states, they have single tails and not double. They also have a longer body shape than those of the fancy goldfish.

They are a hardy breed of goldfish and will tolerate a wide range of conditions. Single-tailed goldfish can grow to about 10 to 14 inches in size. They have a life expectancy of about 20 years.

They can have a reduced or increased lifespan, depending on the conditions provided. Shubunkins and Orandas are also single-tailed goldfish with small sizes. They are hardy and can thrive in harsh conditions.

Most fancy goldfish come in small sizes and rarely reach 14 inches. Some other goldfish breeds also come in small sizes, depending on their physical attributes. Small-sized goldfish breeds usually experience a slow growth rate.

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What Are Small Goldfish Called?

There are different varieties of small goldfish, with each having its name. Small goldfish breeds include the Ryukin, butterfly goldfish, Tosakin, etc. Some people also call small goldfish nymph goldfish, although nymph goldfish are not small.

Small goldfish also get the name “dwarf goldfish” because of their small size. Most people refer to them by their exact name. Small goldfish breeds are some aquarists’ favorite as they are mostly colorful and graceful.

What Size is the Smallest Goldfish?

The smallest breed of goldfish is the twisted tail goldfish. It can grow to be about 6 inches in length. They rarely exceed this length but can fall below the range.

The twisted tail goldfish is a colorful fish with an egg-like shape. They are slow swimmers and have a bright, fancy tail. They provide a sight to watch and graces the tank with their features.

What Are Dwarf Goldfish?

There are two categories of every goldfish; the regular ones with the large size and the irregular ones with the small size. Dwarf goldfish include the types of goldfish of small size. They call them dwarf goldfish because they do not grow to the size of their related cousins.

Most dwarf goldfish are fancy goldfish, as most fancy goldfish come in small sizes. They are mostly genetically mutated, causing them to have deprived growth. They mostly do not exceed half the size of the largest breed of goldfish.

Unlike their other cousins with elongated bodies, they usually have thick bodies—different types of goldfish fall under the dwarf breed. Most dwarf goldfish live for about 10 to 15 years, with only a few exceeding the range.

Most dwarf goldfish fall between the length of 6 to 12 inches. Only a few exceed the range, reaching about 15 inches in length. Dwarf goldfish are mostly hardy and do not pose much stress to aquarists.

If you provide adequate requirements for your dwarf goldfish, they will grow and thrive without problems. You also have to provide the right tank size for them (75 gallons). You can also add decorations and plants in the tank for your dwarf goldfish.

How Big Are Dwarf Goldfish

Dwarf goldfish are smaller when compared to their larger cousins. The growth size ranges from 6 to 12 inches. Some can grow to about 15 inches, which is not very common.

The way you feed and provide them with adequate resources can also tell them about their growth. If you feed them well, they can exceed their growth range. They can also not reach their growth range if you do not feed them well.

The biggest fancy goldfish do not exceed 8 inches. Single-tailed goldfish can reach about 12 inches. Dwarf goldfish do not encounter any additional problems but will face the same issues as their larger cousins.

How Long Does It Take for a Goldfish to Grow to Full Size

With every condition and requirement met, it will take about 6 to 10 months for a goldfish to reach full size. They will only reach this growth rate when you feed the right food and in the right proportion. You will also have to provide adequate tank and water requirements for them.

You also have to know that all fish do not have the same growth rate. Some individuals grow faster than the other, with some reaching their full size before the other. Under adequate conditions, goldfish will reach their maximum size within the range of 6 to 10 months.

Several factors deprive goldfish of growing. You have to understand these factors and make sure you avoid them. These factors include the tank’s size, quality of water, genetic makeup, number of fish in the tank, etc.

How to Help Optimal Growth for Goldfish

For optimal growth of your goldfish, you have to provide the best conditions for your fish. You also have to feed it with the right proportion of food for optimal growth. Make their dietary fat and protein to be about 35% of their food.

You also have to make sure they get the needed amount of carbohydrates, vitamins, and other necessary nutrients. If you can keep the water and tank conditions intact and feed the goldfish with the right food, you will surely notice their fast growth.


Several goldfish breeds come in small sizes. Their small size is not a result of health problems but genetic mutation. There are different small goldfish breeds with several characteristics; you have to pick your choice and keep them.

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