Celestial Eуе Goldfish – Bug Eyed Goldfish

Star Gazing Celestial Eyed Goldfish


These unusual goldfish are currently well known as the Celestial Eyed Fancy Goldfish. They are just one of many different goldfish species that have originated from China and Japan. They have a unique appearance that can be easily spotted when observing a goldfish aquarium. The Celestial Eyed Fancy Goldfish may be beautiful and unique but, they are also one of the most delicate goldfish species that we know of. Proper care, feeding, and aquarium maintenance will be crucial to their overall health and wellness.

History: Where did the Celestial Eyed Fancy Goldfish originate?

The Celestial is one of the many varieties of goldfish that were produced in China. The Chinese began by breeding Carp. Through this breeding, “mutations” developed (such as golden scales). The Chinese were intrigued by the variations and started only producing those that developed in various colors and patterns. Thus, creating the goldfish! The Chinese first developed the Celestial Eyed Fancy Goldfish around the 1870’s. Back then, they referred to them as the Stargazer goldfish because of their unusual eye formation. Later, in the 1900’s, the Japanese continued their development. During this process, the goldfish began developing eyes that no longer moved while turned upwards and they remained permanently in this position. The Japanese began referring to the Celestial as Deme-Ranchu. These goldfish were later introduced to other countries including the United States of America where they are known as the Celestial Eyed Fancy Goldfish.

Physical traits: How to identify the Celestial Eyed Fancy Goldfish in an aquarium:

This goldfish species has many tell-tale features that, when combined, could only identify the Celestial Eyed Goldfish. The most prominent of their physical characteristics is, of course, their eye formations. Their eyes are forever gazing upwards towards the sky. This is completely unique to this species of goldfish. These eyes are also rather large and round in compared to the size of the Celestial’s head. The Celestial Eyed Goldfish can be prone to eye damage if you provide sharp and pointy objects inside the aquarium.

Fun fact: Young Celestials are not born with their stargazing eyes just yet! Therefore, they will resemble a Fantail Fancy Goldfish (except for the dorsal fin) until they mature and develop the tell-tale eye formation.

Another Celestial Eyed Goldfish physical trait is that they lack a dorsal fin! Few goldfish species naturally do not form a dorsal fin. These goldfish are known as being “handicapped” because, without a dorsal fin to stabilize them, they are not able swimmers. This can become a major problem during feeding time if they share an aquarium with agile swimmers such as the Comet Goldfish.

Celestials are one of the many oval or egg-shaped goldfish. This means that their bodies are slightly stubbier than that of the Common Goldfish and that they resemble the shape of an egg. Goldfish with this body shape may have a more difficult time competing for food against slimmer, more agile goldfish.

These fancy goldfish can be identified by their tail fins as well. Unlike, many goldfish species, the Celestial Eyed Fancy Goldfish has a double caudal fin (tail fin) rather than a single caudal fin. Fantail goldfish and few others have this tail design. Many people prefer these tail designs because they have an attractive appearance when fanned outwards. However, most fish with a double, triple, or quadruple caudal fin are not the fastest swimmers in the pack. However, they look so peaceful and beautiful that all forgive their “handicap”!

Celestial Eyed Fancy Goldfish can be found in a variety of colors and patterns. These can include:

  • Black
  • Orange
  • Calico
  • Orange and White

Care: Are Celestial Eyed Fancy Goldfish difficult to care for?

            These goldfish can be considered difficult to care for simply because they are not a hardy fish. Celestials are one of the most delicate goldfish species. This is mainly due to their unique eye formations. While their eyes may be large, they actually have poor eyesight. Another problem is that their eyes are permanently facing upwards which makes the Celestial prone to bumping into their tankmates or objects in the tank. Their unusual eyes are the number one reason why these goldfish should not be kept in an aquarium with sharp or pointy objects. It is your responsibility as their owner to provide smooth objects and help prevent them from any harm.

Celestial Eyed Fancy Goldfish have a lower tolerance for poor water quality than most other goldfish species. Therefore, if you plan to become a Celestial owner, then you should be prepared to provide a good filtration system as well as keep up with aquarium maintenance and water changes. It is vital that you not overcrowd your tank as this will also create poor water conditions. Otherwise, if you follow the basic goldfish care requirements, then you should have happy and healthy goldfish!

Nutrition and Feeding: What does a Celestial Eyed Goldfish eat?

Celestials, like all goldfish, are omnivores! Goldfish are willing to eat just about anything you attempt to feed them. This may include:

  • Worms
  • Bloodworms
  • Brine Shrimp
  • Algae (usually found in the aquarium)
  • Insects (ants, flies, small beetles)
  • Fruits (blueberries, chopped strawberries or grapes)
  • Vegetables (broccoli, lettuce, cabbage, peas)
  • Plants and plant roots
  • Larvae (mosquito)

Habitat requirements: What is the best aquarium and set up for Bug Eyed Fancy Goldfish?

 Goldfish are a messy species. Their digestive systems are much faster than our own which means that they can not only consume their food quickly, but they can also expel it quickly. Goldfish are also very active! Regardless of whether they are speedy or sluggish, they enjoy swimming, and you need to give them enough room to do so! Finally, goldfish can continue to grow until they die, as long as they live in large enough habitats. When you merge all of these facts together, it equates only one thing! Goldfish require an appropriate size home, with a good filtration system, sleek décor, and a suitable amount of inhabitants.

Specialists recommend an aquarium that provides at least 20-gallons of water per inhabitant. For example, if you have chosen four beautiful Celestial Eyed Fancy Goldfish then you should start looking at aquariums that are 80-gallons or more! Does this seem a tad unnecessary? How can four tiny goldfish need 80-gallons or more? Simple. Goldfish require these four things:

  1. Room to swim
  2. Room to grow
  3. A well-oxygenated tank (the more fish you put in a tank, the less oxygen in the water there will be)
  4. Quality water to do it all in!

In addition to the spacious aquarium, goldfish require a good filtration system. There are many different types on the market today that you can choose from. Most goldfish enthusiasts will recommend an HOB (hang on the back) filter or a Canister filter. As long as you provide a filtration system that is appropriate for the tank size and that it does not create an intense current (don’t forget that the Celestial is a slow swimmer, and that fast current would make swimming even harder for them) then you should be in the clear!

Celestial Eyed Fancy Goldfish and other delicate inhabitants should never have sharp or pointy objects inside the aquarium. Objects such as driftwood, pointy gravel, aquarium castles or dragons as well as sharp filter edges, can potentially harm a fragile goldfish’s delicate features (i.e. Celestial’s eyes).

Personality and Temperament: How will the Celestial Eyed Fancy Goldfish act with other fish and my family?

The Celestial Eyed Goldfish has been known to be very loving, social and peaceful with other “handicapped” goldfish as well as their owners. Goldfish, in general, are not known to be an aggressive fish species. Their slow swimming abilities are no match for faster fish, especially during feeding time. Therefore, the Celestial should be tankmates with other slow fish such as the Lionhead, the Black Moor or the Bubble Eyed Fancy Goldfish. Recent studies have shown that goldfish are smarter than they look! They have been known to recognize their fellow aquarium buddies as well as their owners. They can even be taught to be hand-fed. These docile creatures are non-competitive, non-aggressive (unless threatened) and can help bring peace to your home.

Health concerns: What else should I be aware of before choosing the Celestial Eyed Fancy Goldfish?

Goldfish can easily contract various health problems if they are neglected. They must be properly fed each day and given adequate attention. They require your close observation to notice when something is not quite right. For example, if you forget to do a water change, aquarium cleaning or even to turn on the filtration system then you could have sick or dead goldfish in less than a week. Goldfish living in a bad quality water are susceptible to various parasites, diseases, and infections. These poor conditions are where these harmful conditions thrive! Keep your aquarium clean and your fish blissful to help prevent:

  • Parasites
  • Goldfish ICH
  • Swim Bladder Disease
  • Bacterial and fungal infections