Oranda Goldfish

Quick Take

• Oranda goldfish can outlive most family pets, though how long they actually live depends on one factor most owners overlook. Lifespan and conditions →
• Their most prized physical trait gradually becomes a liability, which changes the way they move through the water. How the wen affects swimming →
• Housing an Oranda with other goldfish sounds straightforward, but that assumption changes once you learn which tank mates quietly starve them out. Compatible tank mates →
• Black Orandas can undergo a dramatic color shift the moment they enter a new tank, though this is not a sign of disease. Color changes in new tanks →

The Oranda goldfish is a fascinating breed of goldfish from the Carp family that originated in China and Japan and was developed through the aquarium trade industry. The Oranda is a type of ornamental goldfish that is known for its wen, which resembles a large, jelly-like growth on its head.

This type of goldfish is commonly kept as a domesticated pet in aquariums and is known as a fancy goldfish. They are generally slow-moving and inhabit freshwater aquariums. The Oranda earned the name the “Holland Lion mask” or the “Dutch Lionhead” when they were imported from China to Japan and then to the Netherlands.

5 Facts About Oranda Goldfish

• The Oranda goldfish is known as the Oranda Shishigashira in Japan, where the calico variety is called the Azuma Nishiki.
• Oranda goldfish come in a variety of colors and morphs, with the Redcap Oranda being a popular choice for many fish keepers.
• The Oranda goldfish is a man-made or artificial goldfish breed that is not naturally found in the wild.
• Oranda goldfish grow quite large (up to 12 inches), so they require a large horizontal tank or pond with filtration.
• Oranda goldfish can live as long as a dog, with a lifespan of 8 to 15 years, and in some cases 20 years with the right care and conditions. This makes them a very long-term commitment as a pet.

Appearance

Oranda goldfish boast an interesting appearance that makes them desirable to many goldfish hobbyists. Their most distinctive feature is their overgrown wen, which looks like a soft, fleshy growth on the top of their head. Orandas’ wens continue to grow throughout their lives and are generally small when the fish are first purchased from pet stores.

Most Oranda breeders will only sell their fish when they have a decent-sized wen because it is a desirable trait in this fancy goldfish breed. Orandas come in many different colors, such as blue, white, red, and black, with color morphs such as red and white or calico. The blue-scale Oranda is considered to be uncommon and sought after, but has been available to hobbyists for several years.

Black Orandas may develop a bronze hue on their bodies when introduced into a new aquarium with different conditions than they were raised in, and giving them a metallic appearance. One of the most sought-after Oranda goldfish is the redcap variety, which has a bright red wen and white body. They typically reach a size of 7 to 11 inches in the right-sized aquariums and have paired fins (excluding the dorsal fin) that line their body. Their wen can become very large, which causes the Oranda to swim slowly and in an elevated posture.

History

Oranda goldfish originated in Japan and China in the late 1700s and have not been introduced into the wild. They are considered to be a cross between a Lionhead and a Japanese fantail goldfish, due to the physical similarities these breeds share. They are descendants of the wild carp and common goldfish, which have been selectively bred into the fancy Oranda goldfish kept as pets today. The Oranda is a highly prized goldfish breed in Japan and China, where they have been kept and raised as pets for decades.

Distribution and Population

Since the Oranda goldfish is a man-made breed, it is not distributed throughout the wild and has only been introduced into aquariums, not into the wild. The Oranda goldfish has been imported from China and Japan to populate the aquarium trade industry and is kept as a domesticated pet. They are primarily kept as pets around the world and can live with other fancy types of goldfish.

Reproduction and Lifespan

Oranda goldfish are tricky to breed in aquariums, like many other fancy goldfish. They have specific temperature requirements and aquatic conditions before they can successfully spawn and breed. Female Orandas can lay up to 1,000 eggs during a single spawn once they have matured fully at around one year of age. The male Oranda goldfish encourages the female to release her eggs by nudging her abdomen beneath her tail fin.

The female Oranda will then drop her eggs in shallow waters with plenty of vegetation, and the male will fertilize the eggs. It is not uncommon for goldfish to eat the eggs after they have been laid, and you may also notice a green algae layer developing on the eggs before they hatch into fry within about a week. The fry should be moved to a special tank and fed a high-protein diet to encourage proper growth and development.

The average lifespan of an Oranda goldfish can range from 8 to 15 years, depending on how well they are cared for and how good their genetics are. Some Oranda goldfish can live well over 20 years in large ponds with excellent water conditions.

Diet

The Oranda goldfish is an omnivore and eats a varied diet that consists of both plant and animal matter. They thrive on many commercial foods, especially high-quality pelleted food that sinks to the bottom of the aquarium. Their diet should be supplemented with a variety of freeze-dried or live foods such as bloodworms and tubifex worms to increase their protein intake, especially during their growth stage. Your Oranda goldfish will also benefit from supplements such as blanched vegetables like peas and algae that grow in the aquarium, which they can snack on throughout the day.

Oranda Goldfish In Aquariums

Like all goldfish, the Oranda prefers to inhabit slow-moving, freshwater aquariums that have a neutral temperature that is not too hot or cold. They do not require a heater unless the temperature drops below 59 degrees Fahrenheit (15 degrees Celsius), as they thrive in temperate waters. They can tolerate warm water very well, but the temperature should not exceed 82 degrees Fahrenheit (28 degrees Celsius) for extended periods.

Oranda goldfish are quite sensitive to improper care. They should not be housed with fast-moving goldfish like common and comet varieties that will compete for food. Oranda goldfish should be kept in groups with other slow-moving goldfish because they are quite social. A pair of Oranda goldfish requires a tank or pond of at least 20 gallons because they can grow so large.

If you plan to add more fancy goldfish to the Oranda’s aquarium, you should aim for 40 gallons or more. A good filter that does not cause a strong current in the water column is essential for this goldfish breed, with plenty of surface agitation at the waterline for proper gas exchange.