The Fish Guru

The Unique Beauty of Bubble Eye Goldfish: Care and Breeding Guide

Introduction to Bubble Eye Goldfish

Goldfish are one of the most popular coldwater fishes kept in home aquariums around the world. They are believed to have originated from the Prussian carp, a freshwater fish native to Asia.

First domesticated in China over a thousand years ago, goldfish breeders have been perfecting the art of captive breeding for centuries, resulting in an impressive array of colors, patterns, and fancy varieties. One such fancy variety is the Bubble Eye Goldfish.

Description and Appearance of Bubble Eye Goldfish

The most distinctive feature of Bubble Eye Goldfish is their upturned eyes with fluid-filled sacs that give the appearance of bubbles attached to the fish’s face. Their egg-shaped body is covered in metallic scales that can range from shades of orange, red, chocolate, black, blue, and a variety of bi-colors and calicos.

Unlike other fancy goldfish, Bubble Eye Goldfish only have a double tail, which adds to their unique appearance.

Lifespan and Variations of Bubble Eye Goldfish

If given proper care, Bubble Eye Goldfish can live up to 20 years or more. However, their lifespan can be drastically shortened when not provided with the appropriate living conditions.

There are several variations of Bubble Eye Goldfish, but all have the same characteristic upturned eyes. Some of the more popular color variations include orange and red, while the more exotic ones feature chocolate-colored scales or black and blue coloring.

Care Guide for Bubble Eye Goldfish

Tank Requirements

Bubble Eye Goldfish require a tank with a filtration system that can handle four times the tank’s volume. A 40-gallon tank is the minimum recommended size for two Bubble Eye Goldfish.

The tank should also have plenty of swimming space, which can be achieved by choosing a rectangular-shaped tank. Avoid placing any sharp objects or rough surfaces inside the tank that could damage the fish’s delicate bubble sacs.

Water Parameters

Bubble Eye Goldfish are coldwater fishes and thrive in water that is between 65-75F. The pH range should be between 6.5-7.5, and water hardness should be around 150-300 ppm.

Bubble Eye Goldfish can tolerate a slightly brackish water environment, but avoid adding too much salt. Always test the water regularly to ensure proper water quality.

Aquarium Decoration

Bright lighting is necessary for Bubble Eye Goldfish to see properly, but it is important to balance this need with their natural instinct to hide from predators. Placing silk plants and other aquarium decorations can provide cover, but ensure there is enough open space for them to swim freely.

A gravel substrate is also recommended, as it provides an excellent environment for beneficial bacteria to grow.

Diet and Nutrition

Bubble Eye Goldfish are omnivores and require a balanced diet of high-quality flake food and fresh or frozen meaty foods, such as bloodworms, brine shrimp, and chopped vegetables. Overfeeding can lead to digestive problems and other health issues.

A general rule of thumb is to feed them twice a day, only what they can consume in 2-3 minutes.


Bubble Eye Goldfish are peaceful and get along well with other similar fancy goldfish species, such as Telescopes, Black Moors, Celestials, and Lionhead goldfish. Avoid keeping them with other aggressive or nippy fish, as their delicate bubble sacs can be easily damaged.


In conclusion, owning a Bubble Eye Goldfish can be a rewarding experience. These delicate creatures require specific living conditions and care, but with proper effort and attention, they can thrive for many years.

Be sure to provide them with a balanced diet, a clean and spacious environment, and compatible tank mates to ensure they live a happy and healthy life.

Breeding Bubble Eye Goldfish

Bubble Eye Goldfish are not an easy fish to breed. It requires patience, knowledge, and a lot of hard work.

However, if done correctly, it can be a rewarding and fascinating experience. In this section, we will discuss the steps involved in breeding Bubble Eye Goldfish.

Determining Sex and Spawning

The first step in breeding Bubble Eye Goldfish is to identify their gender. You may need to wait a year or two before they are mature enough to spawn.

Once mature, male Bubble Eye Goldfish will develop white tubercles on their gill covers and pectoral fins. Females tend to be rounder than males, with a plumper body than the males.

When ready to spawn, males will begin to chase the females around the tank. They will often ram into them, trying to push them against the sides of the tank.

This behavior is perfectly normal and means that the males are ready to mate. To encourage spawning, place a spawning mop in the tank.

The mop can be made from acrylic yarn tied to a weight. Ensure that the mop floats and is placed in an area with good water flow.

The fish will lay their eggs on the yarn. Another method is to create a separate tank for spawning.

Place marbles or a grid about three inches from the bottom, as Bubble Eye Goldfish tend to eat their eggs. After laying the eggs, transfer the parents back to their original tank as they may eat the eggs or fry.

Caring for Fry

After the eggs are laid, they will hatch into tiny fry. Ensure that they have sufficient goldfish fry food.

This can include newly hatched brine shrimp, finely ground fish flake food, or crushed pellets. Feed them small amounts every 2-3 hours.

Do this for the first 3-4 weeks of their lives. After a week or two, you can introduce them to your main tank.

Ensure that the fry are at least an inch long, and the main tank is free of any predators. Slowly acclimate the fry to the main tank water and continue to feed them small amounts of goldfish fry food for another week or two.

Diseases and Health

Bubble Eye Goldfish, like all fishes, can succumb to a variety of diseases. Below are some of the most common freshwater fish diseases and how to prevent their outbreak in your tank.

Common Freshwater Fish Diseases

Ich – This is a parasitic disease that causes white spots on the fish’s skin. Ich can spread quickly through the tank, infecting other fish.

It is essential to quarantine new fish before introducing them to your tank and to ensure that your tank’s water is kept clean. Constipation – Constipation can occur if a fish is overfed or fed the wrong type of food.

Symptoms may include a bloated belly, difficulty swimming, and un-easiness. Prevention can be achieved by feeding your fish a balanced diet in appropriate amounts.

Preventing Disease Outbreaks

The best way to prevent disease outbreaks is to maintain clean water in your tank. Ensure that your filter is functioning correctly and that you conduct regular water changes.

A balanced diet can also prevent disease outbreaks. Feed your fish a variety of food types, including live and frozen fish food in addition to basic flakes.

Another useful prevention method is using a quarantine aquarium. When introducing new fish to your tank, isolate them first in a separate tank for 1 or 2 weeks to ensure that they are disease-free.

Once cleared, you can then transfer them to your main tank.


Breeding Bubble Eye Goldfish and ensuring their health can be a challenging task. However, with proper knowledge and effort, it can be done successfully.

Remember to identify their gender, provide a proper breeding environment, and feed their fry a balanced diet. Also, take preventive measures to ensure your tank’s cleanliness and prevent disease outbreaks.

By following these tips, you can ensure that your Bubble Eye Goldfish thrive and live a happy and healthy life.


Bubble Eye Goldfish have become increasingly popular among aquarium enthusiasts over the years. Their unique and elegant appearance make them an attractive addition to any home aquarium.

In this section, we will provide you with some information on where to purchase Bubble Eye Goldfish.

Purchasing Bubble Eye Goldfish

There are several places where you can purchase Bubble Eye Goldfish. The most common place to purchase them is at your local fish store.

Fish stores often carry a wide variety of finned friends, including Bubble Eye Goldfish. Visiting a fish store allows you to see and inspect the fish before purchasing.

You can also receive advice and tips from the store’s staff on caring for your new fish. If you cannot find a Bubble Eye Goldfish at a local fish store, there are several online stores that sell them.

The advantage of buying online is that you have access to a larger selection of fish, including rare and exotic variations that may not be available locally. Online stores typically offer shipping services, but be aware that shipping charges can be expensive, and fish are fragile and susceptible to stress during transport which can be harmful to their health.

When purchasing Bubble Eye Goldfish, always choose stores that have a good reputation for selling healthy and well-cared-for fish. It’s important to choose a store that conducts regular water changes, quarantine new fish before introducing them to their tank, and maintains a healthy environment for their fish.


When it comes to purchasing Bubble Eye Goldfish, there are several options available to you. Visiting your local fish store gives you the opportunity to see and select your fish in person.

Online stores offer a more extensive variety of fish, but be aware of their shipping policies and charges. Always choose a reputable store that maintains a healthy environment for their fish.

With proper care and attention, a Bubble Eye Goldfish can provide beauty and entertainment for many years to come. In summary, Bubble Eye Goldfish are a unique and elegant addition to any home aquarium.

They require specific living conditions and care, but with proper knowledge and effort, they can thrive for many years. When purchasing Bubble Eye Goldfish, choose reputable stores that maintain a healthy environment for their fish.

Take preventive measures to ensure your tank’s cleanliness and prevent disease outbreaks. It is important to remember that by following these tips, you can ensure that your Bubble Eye Goldfish live a happy and healthy life, providing beauty and entertainment for years to come.

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