Long Fin Goldfish: Best 10 Benefits &  Disadvantages

Long Fin Goldfish

Long Fin Goldfish is a breed of fish that was once commonly sold in pet stores but has recently gone into a steep decline in popularity.

Long Fin Goldfish are often found at fish stores specializing in aquatic plants and aquariums. These fish originate from Japan, bred from the common goldfish.

Long fins are more expensive than the more common short fins, which may explain why these fish haven’t been seen around as much lately.

Long Fin Goldfish are similar to common goldfish. They have the same body shape and spot patterns. These fish also have long, flat bodies with a bulge in the middle and are rather large for goldfish.

Long fins reach a size of six to ten inches in length when fully grown. Goldfish grow rapidly and generally live for five to seven years.

Long Fin Goldfish Characteristics

The long fins are similar to common goldfish; only they reach longer lengths. Their color can be white or a light orange shade. Some have spots, while others have stripes and bands.

Long Fin Goldfish are found in the wild, most commonly in rivers and streams in Japan and the Near East, where their larger environment allows the fish to grow in size.

The Appearance of Long Fin Goldfish

The appearance of these fish is most often overlooked. The long fin is the most prominent feature of the goldfish. These fish have a large bulge that protrudes into their bodies’ middle.

These fins can reach up to thirteen inches in length, creating quite a sight for anyone that sees it. Because these fish are so large, they can be a good sight from far away and near.


Long Fin Goldfish are bred through the same breeding process as regular goldfish. They do not require special breeding conditions to breed successfully.

Breeding should be done at the beginning of the summer while there is plenty of sunlight and the water temperature is warm enough to sustain young the hatching and survival of young fish.

Breeding has a 20% chance of failure. Still, spawning can be induced by gradually increasing the temperature in an aquarium then dropping it back down to a cooler temperature for about a week.


Long Fin Goldfish are native to the Middle East, Japan, and China, bred from common goldfish.

In the mid-1800s, some select long finfish were brought to the United States, but their numbers declined due to their large size. The Japanese then started breeding them again with help from the US Department of Agriculture to increase their numbers. The Japanese began exporting these goldfish while they were still very rare in the US, resulting in a declining number.


Long Fin Goldfish are not as picky with their food as common goldfish.

They can be fed various foods, including baby shrimp, brine shrimp, crickets, wax worms, and other items such as flake and pellet fish food.

Though these fish eat some kinds of live food, they can also be fed dead fruits, vegetables, and vegetables because of the high levels of protein in the brains and eyes of goldfish.

Long Fin Goldfish must therefore be fed with a high protein diet.

Long Fin Goldfish Care

Long fin goldfish are a fairly easy fish to care for. They can be fed a variety of foods and are very adaptable.

These fish can survive outside of water in sunny areas and do not require as much water as goldfish.

These fish tend to be rather cold tolerant and live outside in sunny conditions without any problems, though they should always have water during the winter.

Filtration is not necessary with this type of goldfish, but it can be kept in aquariums without trouble.

Long Fin Goldfish History

The long fin goldfish was first bred in Japan by taking a common goldfish and removing its fins. Through selective breeding, the long fin goldfish was created.

The fish eventually made their way to the United States, where they became popular as pets due to being relatively hardy and easy to care for.

Long Fin Goldfish Diseases and Treatments


  • Leukosis
  • Mycobacteriosis
  • Treatments:
  • Treat ulcerative skin disease with betadine or other iodine-based products. Contaminated water is one of the most common sources of this disease. Treat ulcerative skin disease with betadine or other iodine-based products. Contaminated water is one of the most common sources of this disease.


  • Treat ulcerative skin disease with betadine or other iodine-based products. Contaminated water is one of the most common sources of this disease.

Long Fin Goldfish Summary

The long fin goldfish is native to Japan and China. The long fins are unique to this species compared to regular goldfish.

Long fin goldfish can be found at other pet stores, but the ones sold in fish stores are often bred from the hardiest of specimens for sale.

Long fin goldfish is a relatively easy fish to care for. They can be fed a variety of foods and are very adaptable.


1. They can be kept in small aquariums

2. They do not require much filtration

3. They have the same hardiness as common goldfish

4. Their fins are a sight to behold and make for fascinating pets

5. They are relatively easy to care for and don’t need much attention. This is a great fish for beginners!


1. Because they are almost as large as a common goldfish, they can be difficult to handle and very messy

2. They are often sold in pet stores with other common goldfish, so there can be a somewhat higher rate of males in these stores

3. These fish will eat a lot of food, so they are more expensive to feed as compared to common goldfish

Long Fin Goldfish Health Concerns

Long fin goldfish are not known for any health problems in the US. However, their short lifespan and large size make it harder to recover from injury.

As with all fish, long fin goldfish must be kept in properly maintained tanks that have been cleaned and dusted regularly.

Special notes

  • Do not keep these fish with goldfish. They will eat goldfish eggs and fry.
    • Long fin goldfish have a similar lifespan to common goldfish. The average lifespan of the long fin is five years, but some have lived up to ten years in captivity. 


Long fin goldfish are great pets for beginners. They can live in small aquariums, aren’t as messy as other goldfish, and don’t require much attention.

The long fins of this type of fish are a sight to behold and make them stand out.

As with all fish, care must be taken to keep the water clean and debris-free. Because of their large size, children cannot easily handle these fish. Thanks for visiting our site.

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