Goldfish with the Big Eyes: The Only Guide You’ll Ever Need

Do you love having fish as a hobby but looking to move beyond the basics? If so, then goldfish with the big eyes are an excellent choice.

With their bright colors, telescope goldfish with big eyes, easy care requirements, and big cute eyes, these adorable fishes make a great addition to your home aquarium.

Big Goldfish with big eyes come in many shapes and sizes, including the beloved fancy goldfish varieties like calico ranchu or large eyed goldfish.

However, Most fish hobbyists that keeping these telescope goldfish breeds healthy requires some knowledge of proper tank maintenance and nutrition, so we’ve created this complete guide on “Black Gold fish with Big Eyes: The Only Guide You’ll Ever Need.”

Goldfish with big eye

Here you’ll find everything you need to know about caring for, feeding, and maintaining these beautiful creatures in all their glory!

What Is the Goldfish with Protruding Eyes?

Why do goldfish have big eyes? Goldfish with giant eyes are a particular type of fish that have naturally evolved to grow dragon eyes that protrude from its head. This makes them unique and adorable, but it also means they require special care and attention compared to regular goldfish.

The most common variety of this species is called the Telescope Goldfish; however, there are also Bubble Eye Goldfish and Celestial Goldfish, which are just as fancy goldfish big eyes.

what are the goldfish with big eyes called?

The goldfish with big eyes name is Telescope Goldfish. These Fancy goldfish with big eyes are characterized by their prominent, protruding eyes, which can resemble small telescopes. However, depending on their specific appearance, you might also encounter them under other names:

  • Black Moor: black fish with big eyes – This variant boasts a sleek black body with prominent telescope eyes.
  • Panda Moor: A striking combination of black and white scales with large, expressive black goldfish big eyes.
  • Celestial Eye: This unique type features big, upward-pointing eyes, giving them an otherworldly appearance.
  • Bubble Eye: These goldfish have large eyes and fluid-filled sacs beneath them, resembling bubbles.

So, while the “gold fish with big eyes” description is accurate, knowing the specific breed names can help you identify and learn more about these fascinating fish.

Are Popeye Goldfish Natural?

Yes, Popeye Goldfish are a type of goldfish, “carassius auratus,” that can naturally occur in the wild. These types of goldfish with big eyes, hence their name!

goldfish with big eyes

While the goldfish with googly eyes look somewhat comical, these cute goldfish big eyes typically develop due to overcrowded water conditions and poor water quality.

If you want to keep big eye goldfish black in captivity, provide them with plenty of space and regular cleanings to ensure optimal health.

Big Eyed Goldfish Name: What Are Goldfish with the Big Eyes Called?

What are the giant-eyed goldfish called? Telescope eye goldfish, also known as demekin, are a variety of big eyes goldfish characterized by their protruding eyes.

The trait results from a genetic mutation that causes the eyeballs to enlarge and bulge outwards.

Telescope eyes goldfish come in several colors, including gold fish with big eyes black, calico or fantail goldfish (tricolor), oranda (red-caped), and lion head (matted head growth).

All telescope eyes should get consistent care to ensure your goldfish with googly eyes live healthy and happy lives – this includes good water quality, regular feedings with high-quality food, frequent tank maintenance, and even companionship from other fish.

A Little Bit of History About Big-Eyed Gold Fish

Long ago, dull Prussian carp were selectively bred to produce another new breed of bug eyed gold fish of exciting colors. These unique fish breeds are common goldfish.

Since then, more selective breeding has been conducted to improve specific traits and has produced many goldfish breeds we know about.

In the late 17th century in China, goldfish were introduced. They are swollen fish and have protruding eyes. The goldfish resembles the goggles worn by the rider.

big eyed gold fish “A Big Eyeball Goldfish Beauty”

Giant eye goldfish differ from all other goldfish types by their distinctively pointed eyes. It is easy for people to understand this beauty when surrounded by gold.

It’s no easy thing with these trawlers. They have such unique characters that they are beloved by many and considered one of the most beautiful goldfish.

The large Eye Goldfish is also known as a “big eyed goldfish,” Its large eyes, which protrude from its head, make this fish quite stunning. This egg-shaped body fish come in various colors and have a longer lifespan than other types of goldfish.

Fins Telescope goldfish boasts an array of unique fin shapes and sizes; these fish typically feature a single dorsal fin and two opposing pairs for their caudal fin, ventral, anal, and pectoral fin fins.

To keep your Telescope Eye Goldfish happy and healthy, you must provide them with good water quality, plenty of space in their tank, regular cleaning, and feedings with high-quality food. This fish can live up to 10 years or more with proper goldfish care and maintenance!

Why Does My Goldfish Have Big Eyes?

Why do some goldfish have big eyes? Your goldfish has big eyes because of a phenomenon called exophthalmia, which is the scientific term for when tissue fluid leaks into the region behind the eyeball.

This causes an increase in pressure within the eye socket, which can cause swelling and an enlargement of the eye. Many things, including poor water quality, high temperatures, or stressful living conditions, can cause the disease.

Ensuring they are kept in a clean environment with plenty of oxygen, and low stress levels are essential. To prevent your goldfish from developing this condition, 

What Kind of Fish Has Big Eyes?

What kind of fish is big-eyed fish? Big-eyed fish are a type of fish that have eyes that protrude outwards. The most common big-eyed fish is the telescope eye goldfish, which can be found in many colors, such as black moor goldfish, calico or fantail, oranda, and lion head.

The trait results from a genetic mutation that causes the eyeballs to enlarge and bulge outwards. Other types of fish with big eyes include cichlids, gobies, plecos, and some species of catfish.

How Big Do Popeye Goldfish Get?

Popeye goldfish can grow up to 6 inches in length – about the size of a soda can! They are hardy fish with unique “bubbly” personalities, making them popular with goldfish enthusiasts.

If you want your Popeye goldfish to stay small, limit the food they eat and keep the tank temperature low. Poor water quality can also cause them to grow too large, so ensure you provide your fish with clean, non-toxic water.

How Long Do Telescope Eye Goldfish Live?

The average Big-eye goldfish lifespan is 6 to 25 years; with the right goldfish care, they can live up to 30 years if given the right environment and diet.

Proper care for goldfish includes an appropriate-sized tank, clean water, good nutrition, and regular tank maintenance. A 24-inch long tank size should be enough for one adult fish, with at least 10 gallons of water.

Goldfish require plenty of dissolved oxygen in their tanks, so filtration is recommended for larger tanks; air pumps may be necessary for smaller ones.

Their diets consist mainly of flakes but should also include some live food such as brine shrimp, daphnia, or bloodworms

as well as various vegetables like lettuce or cucumbers are rich sources of vitamins and minerals that help keep your big eyes goldfish healthy.

Lastly, it’s essential to do regular partial water changes every two weeks to keep the levels balanced in your tank and immediately take any sick fish out into quarantine before introducing them back into the main tank when they feel better!

Why Does My Goldfish Have One Big Eye?

Goldfish with a big pop eye can be caused by a condition called Popeye, or exophthalmia is characterized by one of the fish’s eyes appearing more extensive than usual.

The #1 cause of this condition in goldfish is trauma – usually from bumping into other objects or aquarium decorations. Other causes include viral infection, poor water quality, and vitamin deficiency.

If you think your goldfish has Popeye, acting quickly to give them the best chance at recovery is essential.

Popeye can be treated with antibiotics, vitamins, and improved water conditions. If left untreated for too long, however, it can be fatal for your fish, so take action as soon as possible!

The best way to prevent this issue in your goldfish is to ensure they are in a clean environment with plenty of oxygen and low-stress levels.

Also, look for any signs of trauma, infection, or vitamin deficiency and address them promptly.

Are Telescope Goldfish Good for Beginners?

Unfortunately, Telescope Goldfish is not recommended as a good beginner fish. This is because they have specific characteristics that require extra attention and care.

For example, deep-bodied fish require large tanks to swim and turn around comfortably. They also have long flowing fins, making them prone to injury if kept in an aquarium with too much water movement or sharp water edges objects.

They also need frequent water changes due to their messy eating habits, producing more waste than common goldfish varieties. Therefore, while these fish can be beautiful additions to an experienced aquarist’s tank, there are better options for beginners.

How Much Does a Big Eyeball Goldfish Cost? (Big Eye Goldfish for Sale)

Panda telescope eye goldfish for sale can range from $10 to upwards of USD 25, depending on the size, age, and quality. Generally, the larger the fish is, the more expensive it will be.

It’s important to research breeders before buying any goldfish to ensure they are reputable and have healthy stock available. Also, always ask your seller for the exact size and age of the fish you buy.

Lastly, avoid buying fish with signs of disease or injury, as these can be complex problems to treat in an aquarium environment if not caught early on.


Telescope Eyed Fancy Gold is regarded by many as a delicious goldfish breed. It is naturally sweet and calm. During these times, they can interact well with the owner and the tankmate.

Black Goldfish with big eyes are often known for their owner and anticipate the owner’s arrival. The Telescope-eyed fancy goldfish cannot recognize the owners of a particular animal.

In summary, the big eyed goldfish is not known as threatening. It is merely appropriate for them to live alongside similarly disabled fish breeds.

What Kind of Habitat Do Telescope Goldfish like?

Telescope goldfish are fancy fish requiring more care and space than standard goldfish. Goldfish with large eyes need an aquarium with room to swim and explore.

The tank should be at least 20 gallons, but larger is better. Telescope goldfish prefer water temperature between 62-72 degrees Fahrenheit and a pH range from 6.8-7.6.

While most freshwater aquariums come with filtration systems, adding a filter for better water quality and some live plants and soft coral reefs to act as natural filters for ammonia buildup in the tank (real or artificial) is best.

When given proper care and attention, most goldfish can live up to 10 years in captivity!

How Do You Take Care of a Big-Eyed Goldfish?

Goldfish are a popular pet, but many people don’t know how to care for them and they often die prematurely.

A big part of the problem is that most people need to learn how to care for their goldfish correctly, and they often die prematurely.

This video will show you how to care for your googly eyed goldfish and keep them alive for up to 15 years.

Telescope Goldfish Eye Problems

Telescope Goldfish suffer from various eye problems due to their protruding eyes. The main issues seen in telescope goldfish include cataracts, ulcers, and cloudiness or discoloration of the eyeballs.

In some cases, these conditions can be managed with medication or other treatment (which should always be discussed with a veterinarian), but they often require surgical intervention.

Common causes of eye problems in Telescope Goldfish include poor water quality, aquarium overcrowding, inadequate nutrition, and infection by parasites or bacteria.

Prevention measures may include:

  • Regular partial water changes.
  • Appropriate filtration systems.
  • Ensuring a good diet and tankmates for the best health of your fish.

Telescope Eye Fish Behavior & Temperament

Bubble Eye Goldfish is a highly calm fish with a good temperament. It is peaceful for them. It’s impossible to get rid of snail-infested creatures. All day long, fish swim in tanks for food.

The animals are expected to explore the tank base, swim through the leaves of the plants and explore the habitat. Do not expect to observe them in your tank water.

Because their unique form and giant eyes bubble and lack a ventral fin, make it is reasonably slow to grow.

Bubble Eye Goldfish Tank Mates

Finding the best buddy for your slow swimmers fish can be difficult. It has many reasons. Firstly its eye sac is easy to damage by aggressive or playful fish.

Second, slower swimming affects the ability to eat daily. Fast swimming fish will fight for food, leaving little room for bubble eyes goldfish.

The species performs very well in a single-species group. If you plan to build a community tank, use fish similar to Bubble Eye Goldfish.

Here is a good tankmate for consideration.

  • Celestial Eye Goldfish
  • Lionhead Goldfish
  • Oranda Goldfish with big head
  • Ranchu Goldfish
  • Ryukin Goldfish
  • Shubunkin Goldfish

These fish are very peaceful and thrive in a community aquarium. Monitor their interactions closely, as some species can become aggressive over time.

Always add new fish in small groups so that they can form relationships gold fish with large eyes with the existing ones.

Unfortunately, due to their potential size and eye protrusion, Telescope Goldfish are unsuitable for aquariums with smaller or more delicate fish, not same as deep sea creatures “squirrel fish”.

Telescope Goldfish Fish Tank Décor Warning

Keep no sharp and pointed objects within Telescope Eyed Fancy Goldfish aquariums. Choose smooth decorations to decorate the tanks, making the fish safe.

Your goldfish will keep growing until they die as long as they get the tank space they need. The birds must remain within rectangular habitats.

Rectangular aquariums and outdoor ponds provide enough room for swimming and growing and give well-oxygenated water to breathe.

The Telescope Eye Fancy Goldfish is a delicate fish that can quickly become damaged by filtering equipment or other tank items.

goldfish with huge eyes – Final Thoughts

To conclude, gold fish big eyes are a delightful addition to any home aquarium. They are visually appealing and add comedic value, as their goofy expressions make them look like they’re always smiling. Furthermore, these fish can tolerate a variety of water parameters and require minimal maintenance. Thus, those looking for an easy-care pet fish that can bring beauty and vibrancy to their aquarium should consider adding big eye gold fish! With the knowledge from this guide, you will know what fish species to purchase, the ideal tank conditions, and which foods best suit your fish. By following this handy guide, you will soon be an expert on goldfish with big eyes and head and have the tank of your dreams!

You might also like

About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

Recent Posts

Stay Updated

Get outdoor trends, data, new products, and tips delivered to your inbox.

error: Content is protected !!
Scroll to Top