Bubble Eye Goldfish: Breeding, Looks, Care, etc. | (US – Updated for 2024)

Goldfish Beautiful Bubble Eye

A freshwater species known as the Bubble Eye Goldfish has an incredibly distinctive appearance. They resemble cartoons nearly precisely and are one of the most well-known goldfish breeds. Everyone wants to possess a fish because it is so unique-looking, but most people are unaware that caring for these fish is more complicated than it appears. Like many of its relatives, the Bubble Eye Goldfish needs a little experience and wisdom to stay healthy. This guide will show you the fundamentals of caring for one if you purchase a Bubble Eye Goldfish for yourself.

A few words about bubble eye fish (species)

The ever-expanding “Fancy Goldfish” family includes Bubble Eye Goldfish. You can’t miss the eye bubbles of this particular species, which is one of its distinguishing characteristics. These fish are an odd and unusual addition to home aquariums due to their fluid-filled sacs. The Bubble Eye was created in China, just like any decorative goldfish. The Prussian carp are thought to have undergone thorough cross-breeding to produce it. This fish does not exist in the wild, swimming. They are only captive-bred, and aquariums around the world contain them.

Except for the Bubble Eye, most goldfish varieties are considered suitable for beginning aquarists. You must attend to this fish’s specific needs. Fortunately, with the proper planning, learning how to care for these particular goldfish isn’t too tricky.

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If the circumstances are favorable, Bubble Eye Goldfish are anxious to breed. They can be generated in big groups, so there is no need to bother about sex differentiation. Breeders frequently create a separate tank to nurture the fry. Keeping these fish in an independent tank is always intelligent because they will almost certainly want to consume their eggs immediately. Give the eggs something to stick to by adding breeding cleaning or delicate plants to the aquarium. The breeding tank’s temperature needs to be raised to roughly 60 degrees to start the spawning process. After that, progressively increase the temperature by 3 degrees per day. The males begin pursuing the ladies when the temperature reaches 68 to 74 degrees.

The looks, size, and life span of bubble-eye fish

The sacs directly below the fish’s eyes make the Bubble Eye Goldfish the most distinctive. These are not inflated with air, despite what many people think. As the fish swim, the fluids in them cause bubbles to jitter. According to some scientists, the fluid may even be able to boost the growth of human cells.

Bubble-eyed goldfish typically reach a length of 5 inches when completely mature. Unlike other goldfish varieties, these fish won’t grow any bigger than this. As a result, keeping them in smaller tanks is not too difficult. A bubble-eyed goldfish typically lives for 10 to 15 years! Like other freshwater fish, the Bubble Eye Goldfish can live considerably longer than other fish species. But if you want them to get to this age, you must give them the tenderest care possible. Water quality and nutrition are the main determinants of Bubble Eye Goldfish’s lifetime, but there are other considerations.

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Gender Differences

Bubble-eye males may display breeding tubercles on their operculum or gill cover and the front limits of their pectoral fins, like other goldfishes. However, sometimes, fancy goldfish do not show these external characteristics. If your fish is struggling to swim and eat, they may not be interested in increasing robust reproductive structures, which is normal for most goldfish varieties.

Feeding Characteristics 

As omnivores, bubble-eyed goldfish will consume nearly everything. With top-notch flakes, they function perfectly. As these fish are renowned for consuming a significant amount of air when feeding, we advise using sinking pellets rather than floating flakes. You can also give out brine shrimp, bloodworms, roundworms, or daphnia. With some protein, they thrive. As scavengers, these fish enjoy searching the aquarium for small creatures to eat. Adding some fruits and veggies to the tank can further encourage that habit. Proceed ahead if you are interested in learning the techniques to feed goldfish.

Bubble Eye Goldfish Diet and Feeding

When it comes to serving your bubble eye, you need to be easygoing. This variation of goldfish has both optical and swimming difficulties, and it takes them much more time to eat than other fish. This is why we mention they are only reserved with other slower, fancy goldfish or only with other bubble eyes.

When taking food, you may want to go with a somewhat higher protein (33-38 percent) than a regular, maintenance goldfish diet. Fancy variations have to expend more energy to swim normally, so some extra calories can help them be more active.

Although not commonly suggested for fancy goldfish, the bubble eye goldfish should be fed a floating diet. Normal goldfish searching behavior, rooting around in the substrate, can cause eye issues. Feed your fish slowly and allow them to eat one tablet at a time. If they are unable to find their food, it will cause additional waste for you and your filter to clean up.

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How to take care of bubble-eyed fish?

Care for Bubble Eye Goldfish is not particularly beginner-friendly. Because of the fragility of their bubbles, they require a particular setting to remain secure. In addition, one must adhere to strict and specialized water requirements to survive. Caring for Bubble Eye Goldfish is doable if you know what to do and have some experience. All you have to do is follow some strict maintenance instructions. First, you require a tank with a minimum capacity of 10 gallons. However, starting with 20 gallons is advised. They’re not the best swimmers, but they’ll like the extra room.

The Bubble Eye is a fish living in cold water like other goldfish. In contrast to many other tropical species, they dislike warmer temperatures. This fish prefers water that is somewhat neutral, clean, and balanced. It is essential to perform frequent water changes. Poor water quality can be pretty traumatic to bubble-eye goldfish. The recommended water temperature, pH, and hardness range are 65 to 80 degrees Fahrenheit, 6.0 to 8.0, and 5 to 19 dKH, respectively.

Conduct and Personality

The most laid-back fish you can own is the bubble-eyed goldfish in terms of disposition. All the other peaceful creatures get along with them. Even snails are off-limits to them. The most laid-back fish you can own is the bubble-eyed goldfish in terms of disposition. All the other peaceful creatures get along with them. Even snails are off-limits to them.

Tank Mates

It can be challenging to find Bubble Eye Goldfish compatible tanks and mates. It results from a variety of circumstances. First, aggressive or playful fish can quickly destroy their eye sacs. Second, their slow swimming makes it challenging to eat consistently. A fish that swims fast will fight over food, leaving the Bubble Eye Goldfish without any. They thrive in groups of their kind. But if you want to build a community aquarium, deal with fish with the same disability as the Bubble Eye Goldfish. Consider these suggestions for suitable tank companions:

  1. Telescope Goldfish
  2. Lionhead Goldfish
  3. Black moors
  4. Celestial Goldfish

Final thoughts

As you can see, caring for Bubble Eye Goldfish involves more than just what meets the eye. Due to their distinctive characteristics, you should take additional care when constructing their habitat. We highly recommend this species if you’re up for the challenge and dedicated to strictly following care instructions. They are among the most unusual-looking freshwater fish you will ever see. Watching them walk around is fascinating because you can gradually observe how different personalities develop in other people.


What are Bubble Eye Goldfish?

These unique goldfish boast mesmerizing “bubbles” around their eyes, created by fluid-filled sacs. They’re prized ornamental fish but require specialized care due to their delicate features.

Are Bubble Eye Goldfish for Sale?

Yes, but they can be expensive due to their rarity and breeding challenges. Look for reputable breeders or specialized fish stores, ensuring proper care information is provided.

What Happens if a Bubble Eye Goldfish’s Bubble Pops?

While not ideal, popped bubbles usually heal with proper water care and minimal stress. However, it’s crucial to monitor for infection and consult a vet if necessary.

Are Black Bubble Eye Goldfish Rare?

Yes, black varieties are less common than their golden counterparts, making them even more sought-after by collectors.

What Size Tank Do Bubble Eye Goldfish Need?

Spacious tanks are crucial! Aim for at least 30 gallons per goldfish, with additional space for larger individuals. Ensure good filtration and avoid tank mates that might compete for resources.

How Much Do Bubble Eye Goldfish Cost?

Prices vary depending on age, quality, and color. Expect to pay several hundred dollars for healthy young adults, with rarer varieties reaching higher prices.

Do Bubble Eye Goldfish Feel Pain?

While their eye sacs might seem uncomfortable, there’s no evidence they cause pain. However, improper care or injuries can be detrimental, so responsible ownership is vital.

How Long Do Bubble Eye Goldfish Live?

With proper care, they can live for 10-15 years, sometimes even longer. Providing a healthy environment and attentive care is key to their longevity.

How Big Do Bubble Eye Goldfish Get?

Their size varies, but typically they reach 5-8 inches in length. Remember, their “bubbles” can add significantly to their overall size and weight.

Are Bubble Eye Goldfish the Same as Bubble Fish?

No, “Bubble fish” can refer to various species, including deep-sea anglerfish with bioluminescent lures. Bubble Eye Goldfish are a specific breed of fancy goldfish.

Aiden David
Hello, I am Aiden David who is passionate about fish and has extensive experience in the field. As a fish lover, I have spent countless hours researching, learning, and working with different types of fish, from freshwater to saltwater species. Through my writing, I aim to share my knowledge and experience with other fish enthusiasts, whether they are new to the hobby or seasoned veterans. I believe that fishkeeping can be a rewarding and enriching experience, and I am excited to help others achieve success and satisfaction in their own aquatic endeavors. From tank setup and maintenance to fish selection and breeding, my articles will provide valuable insights and practical advice that will enhance your enjoyment and understanding of these fascinating creatures.