Butterfly Telescope Goldfish (Care Guide)

colorful goldfish with flowing fins

The Butterfly Telescope Goldfish is a breed known for its prominent eyes and wide tail fins. They resemble butterflies and are popular among fish hobbyists.

Proper care for these fish requires attention to their specific needs in terms of water conditions and diet. Their maintenance reflects the commitment of their owners. Understanding their habitat and social needs is crucial.

The Butterfly Telescope Goldfish represents more than a pet; it is a living art that demands an understanding of the balance between natural beauty and human care.

General Characteristics

The Butterfly Telescope Goldfish is characterized by its protruding eyes and tail fin that resembles a butterfly’s wings.

With the right care, they can live between 5 to 10 years.

They can grow up to 8 inches long, requiring large tanks for enough space to move and grow.


Butterfly telescope goldfish are recognized for their unique shape, with large eyes that stand out and tails that spread out like butterfly wings when seen from above. Their tails open up to 180 degrees, resembling a butterfly’s wings. Sometimes, the weight of their tails causes them to hang down.

These fish come in various colors and patterns such as red, red and white, calico, lavender, blue, white, panda, and tri-color. They are popular in different types like the Butterfly ryukin, Butterfly fantail, Butterfly oranda, and Butterfly moor.


Butterfly telescope goldfish have a lifespan of 8 to 12 years with proper care. They belong to the Fancy Goldfish category and are known for their distinctive butterfly tails and large, protruding eyes that can impair their vision, which requires a safe tank setup.

Consistent water changes and careful tank maintenance are crucial to prevent health issues and ensure a full lifespan. These fish need a clean and stable environment to thrive. Proper feeding and care can improve their life quality and extend their lifespan, making them a valuable addition to aquariums.


Butterfly telescope goldfish, a type of Fancy Goldfish, typically grow to 6-8 inches. They have an egg-shaped body and a wide tail that looks like butterfly wings from above.

They need a large space to live healthily. It’s recommended to keep them in at least a 20-gallon rectangular tank to support their size and allow for comfortable swimming. A tank this size also helps maintain the necessary water quality and living conditions for their well-being.

Aquarium Preparation

For butterfly telescope goldfish, choose a tank of at least 20 gallons for adequate space.

Include essential accessories and decorations for both looks and the fish’s health.

Ensure stable water conditions, such as temperature and pH, for a healthy environment.

Tank Size

A 20-gallon tank is the recommended minimum size for butterfly telescope goldfish due to their need for space to swim and grow. For better care and to accommodate Tank Mates, a larger tank with more gallons per fish is beneficial.

Rectangular tanks are ideal for their horizontal swimming space.

Regular maintenance, including weekly water changes, is essential for water quality.

Water temperature should be between 62°F and 77°F for fish health and longevity.

Tank Equipment And Decorations

To ensure a healthy environment for butterfly telescope goldfish, equip the tank with the following essentials:

  1. Filtration System: Choose a filter that can handle goldfish waste effectively, removing ammonia and nitrite.
  2. Heater: Maintain consistent water temperatures to accommodate your goldfish.
  3. Aeration: Ensure the water is well-oxygenated for the goldfish’s well-being.
  4. Decorations and Plants: Add smooth-edged decorations and live plants to the tank, while avoiding sharp objects.

The tank should be at least 20 gallons to provide adequate space.

Optimal Care Practices

To maintain butterfly telescope goldfish health, proper care is crucial. This includes:

  • Feeding them quality pellets, vegetables, and sometimes live food.
  • Keeping water temperature, pH, and ammonia at the right levels.
  • Performing routine tank cleaning and water changes.
  • Watching for diseases to keep fish healthy.


Diet is essential for butterfly telescope goldfish health and longevity. A balanced diet includes high-quality sinking pellets and occasional live or frozen treats. Avoid floating foods to prevent digestive problems. The diet should meet their nutritional requirements and support vibrant colors.

Dietary practices include:

  1. Staple Diet: Use sinking pellets for butterfly telescope goldfish to prevent swim bladder issues.
  2. Variety: Add live or frozen brine shrimp and insect larvae for extra nutrients.
  3. Algae: Include algae in their diet for its natural benefits.
  4. Feeding Schedule: Feed these fish regularly and in controlled amounts to avoid overfeeding and to keep the water clean.

Water Parameters

For the health of butterfly telescope goldfish, it is important to maintain stable water conditions, with a focus on temperature. A suitable tank for these fish should have a stable temperature within their preferred range and be deep enough for their long fins.

Regular monitoring and adjustments are necessary to ensure the habitat remains ideal for the goldfish. Below is a table of the optimal water parameters:

ParameterIdeal Range
Temperature62°F to 77°F
pH Level6.0 to 8.0
Water ChangesWeekly

Following these guidelines will help keep butterfly telescope goldfish healthy.

Tank Maintenance

Tank care is essential for butterfly telescope goldfish health. Tanks need to be at least 20 gallons for free movement and growth.

A good filter system is crucial to handle waste and keep water quality high.

Weekly water changes of 25% are necessary to reduce harmful substance buildup.

Introduce new goldfish gradually to avoid sudden water parameter shifts.

Since these goldfish do well in groups, maintenance should be scaled up for the increased bioload to maintain a suitable living environment.

Common Diseases

Maintaining a clean tank is essential for butterfly telescope goldfish care, along with managing common diseases. These goldfish, typically imported from Asia and sold in pet shops, need careful attention to avoid sickness. Their unique telescope eyes and butterfly tails make them prone to specific health problems.

  1. Watch for swim bladder issues, which are frequent in these goldfish due to their special shape.
  2. Keep water quality high to prevent fin rot and infections.
  3. Guard their sensitive telescope eyes against harm and pollutants.
  4. Provide a diet rich in fibrous vegetables to prevent constipation and support gut health.

Personality Traits

Butterfly Telescope Goldfish are known for their calm and friendly nature, making them compatible with other fancy goldfish. They are not aggressive and are favored by goldfish enthusiasts for their gentle behavior. These goldfish are recognized by their telescope eyes and butterfly-shaped tails, and they move slowly, requiring a large space to minimize stress and maintain health.

Goldfish owners understand the importance of providing a tranquil environment for Butterfly Telescopes. These fish, including the young, typically do not engage in disruptive behaviors like fin-nipping. They are suitable for community tanks with other peaceful fish.

With proper care, Butterfly Telescope Goldfish can live for 8-10 years or more, sometimes exceeding 12 years. Their long lifespan and peaceful nature make them popular among goldfish keepers.

Compatible Tank Companions

Choosing the right tank mates for Butterfly Telescope Goldfish is essential for a balanced aquarium. These goldfish prefer the company of similarly non-aggressive fish with like care needs. A minimum of a 20-gallon tank is advised for adequate space.

Suitable tank mates for Butterfly Telescope Goldfish include:

  1. Fancy Goldfish Varieties: Ryukins, Orandas, Fantails, and Ranchus are all slow swimmers with a peaceful nature, making them appropriate companions.
  2. Corydoras Catfish: Their calm behavior and bottom-dwelling habits allow them to live harmoniously with goldfish and help maintain a clean tank bottom.
  3. Aquatic Snails: These are compatible as they do not interfere with swimming space and contribute to algae control.
  4. Avoid fast and aggressive fish: Do not mix with common goldfish, Comets, or Shubunkins, as their quick movements and potential aggression can stress the more delicate Butterfly Telescope Goldfish.

When purchasing goldfish, consider your tank’s existing community to ensure new additions will be compatible, promoting a healthy and peaceful environment.

Reproduction Techniques

Breeding Butterfly Telescope Goldfish requires setting up the right environment and caring for the eggs and fry. Breeders must create ideal spawning conditions in a separate tank with spawning mops or plants for egg attachment.

To induce spawning, breeders mimic natural temperature changes with a slight drop, then a gradual increase. A high-protein diet is also provided to prepare the fish for breeding.

Male Butterfly Telescope Goldfish, identified by their larger dorsal fins and slimmer bodies, will chase the females when ready to spawn.

After laying, eggs are moved to a hatching tank with mild filtration and aeration for development. Post-hatch, fry need fine food and a clean tank with regular water changes for growth.

Some breeders use artificial methods like hormone-induced spawning to increase spawn efficiency and fry yield, beneficial for large-scale breeding.

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