Celestial Eye Goldfish (Care Guide)

unusual goldfish with telescope like eyes

The Celestial Eye Goldfish, also known as the Stargazer, is notable for its unique upward-facing eyes and absence of a dorsal fin. These traits are a result of selective breeding.

The fish’s special shape means they require specific care and environments. Aquarists must pay attention to their social and dietary needs.

It’s important to balance the desire to keep these fish with their well-being. Owners should consider the ethical aspects of caring for such specialized fish.

General Characteristics

The Celestial Eye Goldfish has a distinctive look, with eyes that look upwards and round bodies that lack a dorsal fin.

Their size, which can reach up to 5 inches, and lifespan depend on the level of care provided.

They require particular care, making them an interesting choice for fish hobbyists and aquarium keepers.


The Celestial Eye Goldfish has an elongated, egg-shaped body without a dorsal fin, and its eyes point upwards. Its tail fin varies in length. Although it lacks a dorsal fin, common in other goldfish types, it is agile and swims actively.

The upward-facing eyes are a defining feature and contribute to its name. These goldfish are bred for their appearance and come in metallic orange, white, or red-and-white color combinations.


Celestial Eye Goldfish typically live between 8 and 12 years. They require careful attention to reach their full lifespan due to susceptibility to health issues like retinal degeneration. To avoid early death, it’s important to keep their water clean and free of pollutants, as these fish are sensitive to poor water conditions.

A nutritious diet should start by the time they are six months old to contribute to their longevity. Adequate space is necessary for their well-being. With proper care, Celestial Eye Goldfish can live beyond their expected lifespan, providing enjoyment for many years.


Celestial Eye Goldfish typically grow to about 5 inches in length, which is small for goldfish types. They have an elongated, egg-like body similar to Bubble Eye Goldfish and a caudal fin that can be as long as half of their body length. These goldfish lack a dorsal fin, setting them apart from other species.

Despite their size, Celestials are active and move swiftly. Their bright metallic scales, which may be orange, white, or a mix of red and white, add to their attractiveness in suitably sized aquariums.

Aquarium Configuration

For Celestial Eye Goldfish, a minimum 10-gallon tank is necessary for one fish. Maintain water quality with frequent changes and a good filter.

Arrange the tank to provide open swimming areas and protect the fish’s eyes with careful placement of decorations, creating a secure and engaging environment.

Tank Size

Choosing the right size tank for a Celestial Eye Goldfish is crucial for its health. A single fish requires at least a 10-gallon tank. This size is necessary to provide enough room for movement and oxygen exchange.

Goldfish generate a lot of waste, which can pollute the water quickly without proper filtration. Therefore, a strong filtration system is needed to maintain clean water, with biological filtration being essential to break down waste.

For every additional goldfish, add 10 gallons to the tank size to avoid overcrowding and stress.

The shape of the tank should allow for a large surface area to help with gas exchange and to suit the swimming style of the Celestial Eye Goldfish.

Tank Equipment And Decorations

To maintain a proper living space for Celestial Eye Goldfish, it’s important to install a biological filtration system to keep water clean. Regular water changes of about 25% to 33% per week are also needed.

When adding decorations, opt for few items and place them near the tank’s perimeter, avoiding sharp edges to prevent injury to the fish due to their limited vision.

Stability in tank conditions is crucial during breeding season for the well-being of these fish.

A well-equipped and safely decorated tank is essential for the health of Celestial Eye Goldfish.

Maintenance Requirements

Celestial Eye Goldfish require careful maintenance for their health and longevity.

Maintain optimal water conditions, follow a strict tank cleaning schedule, and provide a diet suited to their needs.

Regularly check for diseases, as they are prone to health problems.


Celestial Eye Goldfish require a diverse diet for optimal health. This includes high-quality flake food as well as additional brine shrimp, blood worms, Daphnia, or tubifex worms. It is important to provide a combination of fresh, frozen, and flake foods to ensure their dietary needs are met and balanced.

Key Points for Celestial Eye Goldfish Diet:

  • Diversity is essential to avoid nutritional deficiencies.
  • High-quality food ensures better health and digestion.

Maintenance Tips:

  • Their diet can lead to significant waste, so efficient filtration and regular water changes are necessary.
  • Maintaining proper water temperatures is crucial for their digestion and metabolism.

Water Parameters

For the health and longevity of Celestial Eye Goldfish, it is essential to maintain proper water parameters through diligent aquarium care.

These fish require cold water and produce significant waste, making efficient water filtration and frequent cleaning essential. Below is a table that outlines the necessary conditions for a Celestial Eye Goldfish environment:

ParameterIdeal Range
Tank Size10 gallons or larger
Water Change FrequencyWeekly (25% to 33% of the tank volume)
FiltrationHigh-capacity biological filtration
Pollution ToleranceLow
Algae ControlSnails are advised for algae control

Tank Maintenance

It is essential to perform regular maintenance on tanks housing Celestial Eye Goldfish to keep them healthy. This includes:

  • Weekly water changes of 25-33%
  • Ensuring efficient filtration
  • Monitoring tank conditions closely

A stable water quality is vital due to the fish’s sensitivity from selective breeding. Overcrowding can cause stress and buoyancy problems, so a minimum of 10 gallons of water per fish is recommended to provide sufficient space.

Keeping the water temperature consistently between 65-72°F (18-22°C) and cleaning the tank regularly are critical for the health of these fish.

Common Diseases

Celestial Eye Goldfish are prone to several common aquatic diseases due to their fragile nature. Careful attention to their environment and water quality is essential. To maintain their health and reduce disease risk, especially for their unique eyes, the following maintenance practices are important:

Water Quality: Use effective filtration, focusing on biological filtration. Perform weekly water changes of 25-33% to keep pollution levels down.

Environment: Ensure plenty of space to reduce stress and associated health problems. Do not house them with aggressive or fast-moving fish, particularly during feeding, to avoid stress and injury.

It is vital to follow these guidelines for the health of Celestial Eye Goldfish, and it is particularly important for their breeding, as stress and unsuitable water conditions can negatively affect their ability to reproduce.

Temperament and Social Interaction

In managing a community aquarium, it’s important to note that Celestial Eye Goldfish are calm but slow, requiring careful selection of tankmates to avoid stress during feeding. They are best kept in calm waters where they won’t be outpaced by faster fish.

Celestial Eye Goldfish are sociable and do well with other goldfish of similar speed and temperament. Their unique eye structure makes them more accident-prone, highlighting the need for a safe tank environment.

These goldfish swim slowly and may not compete well for food, risking malnutrition. It’s recommended to house them with other fancy goldfish that have comparable mobility limitations.

For Celestial Eye Goldfish to be healthy and content, the aquarium should have appropriate tank size, filtration, and water quality. Proper balance of these elements and a suitable social setting are key to their well-being.

Compatible Species

Celestial Eye Goldfish require careful consideration when selecting tankmates due to their peaceful nature and visual limitations. It’s crucial to choose species that won’t take advantage of the goldfish’s impaired eyesight or cause them stress.

Suitable species that can live with Celestial Eye Goldfish include:

  • Bubble Eye Goldfish: They are compatible due to similar swimming capabilities and care needs.
  • Water Bubble Eyes: These fish have comparable care requirements and a non-aggressive temperament.
  • Snails (like Nerite Snails): They help with algae control and don’t interfere with goldfish feeding.
  • Red Cherry Shrimp: Non-aggressive and can thrive in the same water conditions as Celestial Eye Goldfish.
  • White Cloud Mountain Minnows: These fish are non-intrusive and can live in similar temperatures.

Maintaining an environment that accommodates the special needs of Celestial Eye Goldfish is essential. The species mentioned are suitable as they are non-threatening and contribute positively to the aquarium’s environment. It’s important to ensure these tankmates are not too fast or competitive during feeding to preserve a harmonious and stress-free space for the goldfish.

Reproduction Techniques

Breeding Celestial Eye Goldfish necessitates a controlled environment and understanding of their reproductive behavior. As a specific type of Carassius auratus gibelio, they require particular conditions for successful breeding.

A 20-gallon minimum breeding tank with plants and surfaces for eggs to adhere is advised, as it resembles their natural spawning grounds and increases the likelihood of successful reproduction.

Temperature control is essential to trigger spawning by mimicking seasonal temperature changes. A tidy tank space is also important, providing hiding spots for females during spawning for their safety and comfort.

It’s crucial to distinguish male from female fish before breeding. Males display breeding tubercles on their gills and head in breeding season, while females appear fuller when carrying eggs. Mating can be difficult outside the breeding season due to less obvious physical differences.

Celestial Eye Goldfish are egg-layers and generally spawn well in groups. A higher number of males to one female can improve breeding outcomes. However, their upward-facing eyes, shared with the related Bubble Eye Goldfish, can hinder the spawning process as it makes it more difficult for males to locate females.

Post-spawning, fry should be moved to a separate tank with ideal water conditions and food. Monitoring their development is key for their health and growth.

Due to welfare concerns in breeding these types of goldfish, responsible breeding practices are essential, and hobbyists might consider other less challenging varieties.

Leave a Comment

Your email address will not be published. Required fields are marked *