Top Goldfish Types: A Guide for Aquarium Owners


Comet species goldfish

Goldfish are a beloved pet for several reasons. They’re hardy, easy to care for, and come in various colors. Additionally, goldfish make excellent entertainment as playful and social animals.

Goldfish have been kept as pets for centuries, with evidence pointing to their origins in China around 1000 AD. Nowadays, Goldfish are one of the world’s most beloved aquarium fish; estimates suggest that more than 10 billion Goldfish are kept as pets worldwide.

Goldfish come in three main categories: single tailed, double tailed and triple-tailed.

Single-tailed Goldfish are the most common type of pet Goldfish. Their anal fin is divided into two separate lobes on either side of their body for easy identification.

Double-tailed Goldfish also possess two distinct lobes on either side of their body, as well as a dorsal fin split into two distinct lobes that give them a butterfly-shaped appearance.

Triple-tailed Goldfish have an anal fin that has fused together into one large lobe and a dorsal fin also featuring one large lobe.

Here is a list of the most popular Goldfishes:

Common Goldfish

Common Goldfish
Common NameCommon Goldfish
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 12 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 30 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration
NotesNot suitable for small aquariums or bowls

The Common Goldfish is native to East Asia and a popular choice for aquariums and backyard ponds due to their striking appearance, low maintenance requirements, and hardiness.

Common Goldfish are easily identified by their bright orange or gold coloration, though they can also be found in various other colors and patterns such as white, black, or calico. With a long, streamlined body shape that can reach up to one foot long in captivity (though typically around 6-8 inches), Common Goldfish have become widely popular aquarium inhabitants.

Common Goldfish require minimal care to maintain. They can tolerate a wide range of water temperatures between 65-78°F; however, they require a large tank or pond to accommodate their size and swimming habits.

Goldfish have a reputation for having messy eating habits and producing excessive waste, so regular water changes and filtration are necessary to maintain good water quality.

Common Goldfish are omnivores and will eat a variety of foods, such as flakes, pellets and live or frozen food. Furthermore, they tend to be social creatures so should be kept in groups of at least 2-3 to prevent them from feeling lonely or stressed.

Although Common Goldfish require minimal care and attention, there may be health risks you should be aware of. They are susceptible to diseases like ich and fin rot that are usually caused by poor water quality or stress. Overfeeding could also result in swim bladder issues or obesity.

Black Moor Goldfish

Specimen of adult goldfish of the black moor breed with globular eyes, in cold water aquarium
Common NameBlack Moor Goldfish
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 10 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 30 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration; may have difficulty seeing due to their protruding eyes
NotesBest kept with other slow-moving or similarly visually impaired fish

The Black Moor Goldfish is a variation of the Common Goldfish with striking black coloration that sets it apart. They can grow up to 6 inches long and are known for their round, protruding eyes and short, rounded body shape.

Black Moor Goldfish can be kept indoors or outdoors and are an ideal choice for novice fishkeepers due to their low maintenance needs. Omnivores, they will eat a variety of foods like flakes, pellets, live or frozen food items.

Black Moor Goldfish can tolerate a range of temperatures, but prefer cooler waters between 65-72°F. To accommodate their large size and swimming habits, a large tank or pond is necessary; additionally, regular water changes and filtration help to maintain good water quality.

Black Moor Goldfish have unique eyes, making them vulnerable to eye infections and injuries. Furthermore, these goldfish tend to develop swim bladder issues which could result in difficulty swimming or floating upside down. Overfeeding and poor water quality are often responsible for these issues.

Breeding Black Moor Goldfish in captivity is possible, but requires specific conditions and careful management for successful reproduction. They can produce up to 1,000 eggs per spawn which hatch into tiny, transparent fry that require special care and feeding.

Bubble Eye Goldfish

Common NameBubble Eye Goldfish
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 6 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 20 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration; delicate bubbles under their eyes can rupture and cause injury
NotesBest kept with other slow-moving fish to avoid injury

The Bubble Eye Goldfish is an unusual and beloved species of Goldfish that can be identified by its fluid-filled sacs beneath its eyes. These bubbles give this variety a distinct appearance.

Bubble Eye Goldfish are commonly kept in aquariums or outdoor ponds due to their unique appearance. Unfortunately, they require more specialized care than other varieties due to the delicate bubbles on their scales; these can burst easily if the fish is handled roughly or comes into contact with sharp objects within its tank.

Bubble Eye Goldfish require a large tank or pond to accommodate their size and swimming habits. Omnivores, they will eat a variety of foods like flakes, pellets, live or frozen food; however it must be ensured not to feed them sharp or hard items which could damage their bubbles.

Bubble Eye Goldfish are especially vulnerable to eye infections and injuries due to the delicate bubbles they produce. To keep them healthy, goldfish should be kept in water that’s free of pollutants and debris, with any sharp objects removed from the tank in order to safeguard their bubbles.

Breeding Bubble Eye Goldfish in captivity can be done, but requires special management for successful fertilization. The bubbles may present challenges during this process as they impair their vision and ability to navigate properly.

Celestial Eye Goldfish

Common NameCelestial Eye Goldfish
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 6 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 20 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration; delicate eyes can be easily injured
NotesBest kept with other slow-moving fish to avoid injury

Celestial Eye Goldfish are distinguished by their unusual upward-facing telescope-style eyes. This trait results from a genetic mutation which causes their eye sockets to grow upward and protrude from the top of their head.

Celestial Eye Goldfish require special care to maintain their health and wellbeing. Their eyes are particularly prone to injury or infection, making them susceptible to vision impairment and difficulty navigating in unfamiliar waters. It should be kept in water free of pollutants and debris, with any sharp objects removed from the tank in order to protect their eyes from injury or infection.

Celestial Eye Goldfish require a large tank or pond to accommodate their size and swimming habits. Omnivores, they will eat various foods such as flakes, pellets, live or frozen food – provided it’s easily accessible for them and their eyesight allows them to see it clearly. To ensure optimal care for these delicate creatures, it should always be kept in an accessible tank or pond.

Celestial Eye Goldfish have a distinct swimming style. They tend not to be as active as other goldfish varieties and prefer calm, still water. To prevent competition for food and reduce stress levels, it should be kept with other slow-moving fish species.

Celestial Eye Goldfish can be successfully bred in captivity, but requires meticulous management for successful hatching. Their eyes make it difficult for the fish to see and navigate clearly, making breeding even more challenging.

Comet Goldfish

Comet Goldfish
Common NameComet Goldfish
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 14 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 55 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration
NotesBest kept in outdoor ponds; not suitable for small aquariums

The Comet Goldfish is a species of Goldfish known for its long, sleek body shape and stunning orange coloring. They’re hardy fish that can withstand a wide range of water conditions, making them an ideal choice for novice fishkeepers due to their ease of care requirements.

Comet Goldfish can grow up to 12 inches long, making them one of the larger varieties of Goldfish. Typically kept in aquariums or outdoor ponds, Comet Goldfish require a large tank or pond to accommodate their size and aggressive swimming habits.

Comet Goldfish are omnivores, meaning they will consume a variety of foods such as flakes, pellets and live or frozen food. While they can withstand a wide range of temperatures between 65-72°F, they prefer cooler waters between 65-72°F. Regular water changes and filtration are necessary to maintain good water quality for these omnivores.

Comet Goldfish have the unique ability to jump, making them highly active and eager to explore. When selecting a tank or pond for them, this behavior should be taken into consideration; these fish should be kept in an enclosed or fenced area to prevent them from escaping.

Fantail Goldfish (Ryukin)

Fantail Goldfish
Common NameFantail Goldfish (Ryukin)
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 8 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 30 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration; delicate fins can be easily damaged
NotesBest kept with other similarly shaped and sized fish

The Fantail Goldfish (Ryukin) are a breed of fancy Goldfish native to Japan that are characterized by their distinctive tail shape – sometimes described as either a double fan or butterfly tail. Their body is round and deep with colors ranging from red and orange through white, black, and blue.

The Ryukin variety is especially sought-after due to its metallic scales and vibrant colors.

Fantail Goldfish (Ryukin) are popular among hobbyists due to their ease of care. Hardy creatures, they can survive in a variety of water temperatures between 65-72degF. Furthermore, these low maintenance fish require only regular feedings and occasional water changes for optimal health.

Fantail Goldfish (Ryukin) are unique in their behavior. They tend to be active and curious creatures that enjoy engaging with their owners. Furthermore, these finned friends possess a playful yet sometimes mischievous streak; often playing with objects in their tank or rearranging the gravel.

Fantail Goldfish (Ryukin) require a larger tank than other varieties of Goldfish. They can grow up to 8 inches long and produce an abundance of waste, which could quickly overrun a smaller tank. As a general guideline, provide at least 20 gallons of water per fish for optimal care.

Fantail Goldfish (Ryukin) are omnivores and will consume a variety of foods including flakes, pellets, live or frozen items like bloodworms or brine shrimp. However, it’s important not to overfeed them as this could lead to health issues like swim bladder disease.

Oranda (also known as the Lionhead)

Carassius gibelio forma auratus. Oranda red cap in the aquarium
Common NameOranda (also known as the Lionhead)
Scientific NameCarassius auratus
Native RegionEast Asia
SizeUp to 8 inches
DietOmnivorous
TemperamentPeaceful
Tank SizeMinimum 30 gallons per fish
Water ParameterspH 7.0-8.4; Temperature 65-72°F
Special NeedsRequires a lot of swimming space and good filtration; delicate wen (fleshy growth on head) can be easily injured
NotesBest kept with other similarly sized and shaped fish; wen growth can become infected if not kept clean and healthy.

The Oranda (also known as Lionhead) is an attractive breed of fancy Goldfish native to China. It stands out for its distinctive physical traits such as its prominent hood on its head, round body shape and flowing fins. The hood on an Oranda actually consists of tissue which resembles a lion’s mane – thus earning it the name “Lionhead.”

An Oranda Goldfish has a round and compact body. They come in an array of colors such as red, orange, black, blue or calico. Being hardy breeds of Goldfish they can survive in most water temperatures between 65-72°F.

One of the features that sets Orandas (Lionheads) apart is their hoods. Goldfish enthusiasts prize this feature highly, and size and shape of each hood varies between fish. Some have small, rounded hoods while others boast large flowing hoods that cover their entire head.

Orandas (Lionheads) are renowned for their striking physical characteristics as well as a playful and inquisitive nature. These energetic fish enjoy exploring their environment and interacting with owners. Furthermore, Orandas require minimal care – only regular feedings and occasional water changes to stay healthy.

However, it’s essential to note that Orandas (Lionsheads) require a larger tank than other Goldfish varieties. They can grow up to 8 inches long and produce an abundance of waste which could quickly overrun smaller aquariums. As a general guideline, provide your goldfish with at least 20 gallons of water per fish.

When it comes to feeding Orandas (Lionsheads), they are omnivores and will eat a variety of foods like flakes, pellets, live or frozen items like bloodworms or brine shrimp. However, it’s important not to overfeed them as this could lead to health issues like swim bladder disease.

What Are Goldfish and Where Do They Come From?

Goldfish are a beloved type of pet fish kept in many households around the globe. But what exactly are Goldfish, and where did they originate?

Goldfish are freshwater members of the carp family and have been selectively bred for centuries to produce an array of colors and patterns.

Originating in China over a thousand years ago, these popular pet fish have become widely cultivated around the world.

Goldfish are freshwater species belonging to the carp family, also known as koi fish. They’re characterized by vibrant colors, flowing fins and unique body shapes which have been selectively bred over centuries for the wide array of varieties seen today. Goldfish come in an array of hues, including orange, red, yellow, black or white with patterns like spots or stripes or metallic scales.

Goldfish were first domesticated over 1,000 years ago in China and were initially kept as food or ornamental fish for wealthy Chinese families. Records indicate the first recorded instance of Goldfish keeping as pets dates back to the Tang Dynasty (618-907 AD). By the Song Dynasty (960-1279 AD), these ornamental fish had become widely popular throughout China – often kept in ornamental ponds or water gardens.

Goldfish were first introduced to Japan in the 16th century and then spread throughout Europe during the 17th. These popular pets quickly gained notoriety, prompting breeding programs to create new varieties. By the turn of the 20th century, Goldfish had made its way over to North America where they quickly gained notoriety as popular pet fish.

Today, Goldfish are among the most beloved pet fish worldwide. Not only do they require minimal care to maintain, but their vibrant colors and distinctive shapes make them a favorite among aquarium keepers.

Furthermore, Goldfish are used in scientific research studies to understand genetics, development, and behavior.

How Do You Take Care of Goldfish?

Goldfish require the appropriate care to thrive. So how should you take care of your goldfish?

Care for Goldfish requires providing them with a suitable aquarium or pond, clean water, and an appropriate diet. You should also monitor their behavior and health regularly and adjust the environment as necessary.

Care for Goldfish is a relatively straightforward task and only requires some basic steps. Here are some tips to ensure your Goldfish receives the best possible care:

  • Create an Ideal Environment: Goldfish require a large aquarium or pond that can accommodate their size and swimming habits. As a general guideline, provide at least 10 gallons of water per Goldfish in your aquarium. Furthermore, make sure there’s a filter and air pump installed to keep the water clean and oxygenated. If keeping Goldfish in a pond, ensure it’s deep enough with plenty of plants and other natural features for them to explore.
  • Keep the Water Clean: Goldfish produce a lot of waste, so it’s essential to keep their aquarium or pond clean. Change 10-20% of the water each week and use a gravel vacuum to remove debris from the bottom of the tank. Test regularly for pH, ammonia, and nitrite levels to ensure they remain within healthy limits.
  • Feed a Healthy Diet: Goldfish are omnivores and require a balanced diet of both plant and animal matter. Feed them high-quality fish food that has been specifically designed for Goldfish. You may also supplement their food with vegetables like peas, lettuce, spinach; live or frozen foods like brine shrimp or bloodworms is occasionally offered too.
  • Monitor Your Goldfish’s Health: Be on the lookout for any signs of illness or injury, such as changes in behavior, appetite or appearance. Address any health issues promptly to avoid spreading them to other fish.
  • Make Adjustments as Needed: Goldfish may require adjustments to their environment as they grow and develop. For instance, you may need to increase their aquarium or pond size, adjust their diet, or add new plants or decorations in order to keep them stimulated and healthy.

By following these simple guidelines, you can ensure your Goldfish live a long and healthy existence. Don’t forget to spoil them with plenty of love and care too; Goldfish are social creatures who enjoy engaging with their owners.

What Are Some Common Goldfish Diseases?

Like all pets, Goldfish are susceptible to diseases and health issues. So, what are some common goldfish diseases to watch out for?

Common Goldfish diseases include swim bladder disorder, ich, dropsy, fin rot, and anchor worm.

Symptoms of these diseases can include changes in behavior, appetite, or appearance. Prompt diagnosis and treatment are essential for a positive outcome.

Goldfish are relatively hardy and low-maintenance pets, but they can still develop health issues and diseases. Here are some of the most common goldfish diseases and their symptoms:

  1. Swim bladder disorder: This condition affects the swim bladder, a gas-filled organ that helps fish control their buoyancy. Symptoms include difficulty swimming, floating upside-down or sideways, or sinking to the bottom of the tank.
  2. Ich: Also known as “white spot disease,” ich is a parasitic infection that causes white spots to appear on the fish’s body and fins. Other symptoms include flashing, scratching against objects, and clamped fins.
  3. Dropsy: Dropsy is a bacterial infection that causes the fish to swell up like a pinecone. Other symptoms include lethargy, loss of appetite, and difficulty swimming.
  4. Fin rot: Fin rot is a bacterial infection that causes the fins and tail to become frayed or discolored. In severe cases, the fins may disintegrate entirely, leaving the fish vulnerable to other infections.
  5. Anchor worm: Anchor worm is a parasitic infection that causes small red or white worms to protrude from the fish’s body. Other symptoms include inflammation, irritation, and ulceration of the skin.

If you notice any of these symptoms in your Goldfish, it’s essential to diagnose and treat the problem promptly.

Depending on the disease, treatment may involve water changes, medications, or quarantine. To prevent the spread of disease, it’s also important to keep your Goldfish’s aquarium or pond clean and well-maintained, and to avoid introducing new fish without proper quarantine procedures.

With proper care and attention, you can help ensure that your Goldfish stay healthy and happy.

Can Goldfish Live in Ponds?

Are goldfish capable of living in ponds, and what should you know about keeping them there?

Yes, goldfish can live in ponds and may even thrive outdoors. However, there are several factors to consider such as pond size, water quality, and temperature fluctuations.

Goldfish make excellent pond fish due to their hardiness and adaptability to various environments. However, it’s essential that you provide them with the appropriate conditions for optimal health and wellbeing.

Here are some tips for keeping Goldfish in a pond:

  • Choose the appropriate pond size: Goldfish require an area large enough to accommodate their size and swimming habits, with at least 10 gallons of water per Goldfish. Furthermore, make sure the pond has plenty of depth so temperature fluctuations can help oxygenate and maintain health of the water.
  • Monitor Water Quality: It is essential to keep pond water clean and free of harmful bacteria and toxins. Testing regularly the pH, ammonia, and nitrite levels in the water can help ensure it remains within healthy ranges, and performing water changes as necessary can keep things oxygenated and clear.
  • Provide Natural Attractions: Goldfish thrive in ponds that offer a range of natural features like plants, rocks and hiding places for them to explore and hide. These elements give the fish somewhere to explore and hide while stimulating and maintaining their health.
  • Consider temperature fluctuations: Goldfish can tolerate a range of temperatures, but extreme changes can be harmful. Generally speaking, the ideal water temperature for Goldfish is 65-75 degrees Fahrenheit. If temperatures fall below this mark, you may need to provide additional heating or aerators in order to keep the water oxygenated and prevent freezing.
  • Be alert for predators: Goldfish are vulnerable to predation from birds, raccoons, and other animals. Consider installing netting or other protective measures around your pond to prevent these creatures from accessing it.

What Should You Consider Before Purchasing a Goldfish?

When shopping for your goldfish, there are some essential points to take into account. So what information do you need to be aware of prior to making your purchase?

Before purchasing a goldfish, it’s essential to take into account factors like tank size, water quality, diet and compatibility with other fish.

Furthermore, be prepared to provide your goldfish with adequate care and attention in order to promote its health and wellbeing.

Goldfish make wonderful pets, but they require special care and consideration. Here are some things to think about before buying a goldfish:

  • Tank Size: Goldfish require a large tank to accommodate their size and swimming habits. A general guideline is to provide at least 10 gallons of water per Goldfish. If you plan on keeping multiple Goldfish, an even larger tank is necessary in order to prevent overcrowding.
  • Water Quality: Goldfish are delicate to changes in water quality, so it’s essential to maintain a clean and oxygenated aquarium. You’ll need an air pump, gravel vacuum, filter system, as well as testing the water regularly for pH, ammonia, and nitrite levels within healthy ranges.
  • Diet: Goldfish require a balanced diet of both plant and animal matter. You should feed them high-quality fish food specifically designed for Goldfish, supplement with vegetables like peas, lettuce, spinach, live or frozen foods like brine shrimp or bloodworms when available, or offer them premium quality fish food when available.
  • Compatibility with Other Fish: Goldfish tend to be peaceful creatures that can coexist with other fish of similar size and temperament. However, they may become aggressive towards smaller or slower-moving fish, so it’s essential that you select tankmates carefully.
  • Care and Attention: Goldfish require regular care to ensure their health and wellbeing. You’ll need to perform regular water changes, clean the tank and filter, as well as monitor your Goldfish’s behavior for any signs of illness or stress. Furthermore, you should provide them with stimulation through social interactions; after all, they enjoy spending time with their owners!

Frequently Asked Questions

Q: How long do Goldfish live?
A: Goldfish can live up to 10-15 years with the proper environment and care.

Q: Can Goldfish live in a bowl?
A: Yes, but it is not recommended due to its small size and difficulty maintaining proper water quality.

Q: What Do Goldfish Eat?
A: Goldfish feed on a variety of items, such as flakes, pellets, vegetables and live or frozen foods such as brine shrimp or bloodworms.

Q: How Often Should You Feed A Goldfish?
A: Ideally goldfish should be given small amounts of food 1-2 times daily.

Q: How big do Goldfish grow?
A: Goldfish can reach sizes ranging from 2-14 inches depending on the breed and environment.

Q: How do you take care of a goldfish?
A: They should be kept in an aquarium with proper filters and water conditions, fed a balanced diet, and their tank cleaned regularly.

Q: Can Goldfish live with other fish?
A: Yes, but not all are compatible. It is essential to research and select suitable tank mates for your Goldfish.

Q: How can you tell if a goldfish is dying?
A: Signs that your goldfish may be near death include lethargy, loss of appetite, abnormal swimming behavior and changes in appearance or coloration.

Q: Can Goldfish survive in tap water?
A: Absolutely, however it is recommended to treat tap water with a water conditioner to eliminate chlorine and other hazardous chemicals.

Q: Why do Goldfish change color?
A: Goldfish can undergo color changes due to genetics, diet and environmental conditions. Some breeds are known for changing hues as they age.

Fishkeepingfans

We are Frederik and Felix, brothers and passionate fishkeepers who have dedicated their lives to the pet industry. We are trusted experts in this field thanks to years of experience as the owners of a high-end pet shop that specializes in aquariums and terrariums. We are certified in aqua animal care, aquarium maintenance, fish health, and terrarium maintenance. We started this blog because we love sharing our knowledge with other fishkeeping enthusiasts. All of our content is well researched and based upon scientific evidence from reliable sources like the American Association of Fish Veterinarians or the Aquatic Animal Life Support Operators. We strive to provide accurate and reliable information for our readers and are available to answer any questions. We hope that you find our blog interesting and we look forward sharing our passion with yours!

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