Is my angelfish with pop-eye disease?

In this post, we will answer the question “Is my angelfish with pop-eye disease?”. We will discuss the most common symptoms and how to treat and prevent pop-eye disease.

Is my angelfish with pop-eye disease?

If your fish is showing some of the symptoms below, there is a big chance it has the pop-eye disease. As a result, you will need to execute the therapies in order to help your fish.

  • One or both eyeballs protrude;
  • Eye socket stretching;
  • Discolouration or bleeding in the eyeball;
  • An ocular rupture is a condition in which the eyeball ruptures;
  • The eyeball is cloudy;
  • Inactivity;
  • Appetite loss; 
  • Hiding or other behavioural  alterations;
  • Body swells;
  • Fins tangled.

What is the cause of pop-eye illness?

Pop-eye disease is a disorder in which a fish’s eye balloons up and protrudes unnaturally from its socket. Exophthalmia is also known as “pop-eye swelling” or “pop-eye swelling.” It is typical in some aquarium fish, such as the black moor goldfish and the telescope-eye goldfish, to have protruding eyeballs; this is not the same as pop-eye sickness. Based on the intensity of the ailment, fish pop-eye can damage one or both eyes at the same time. In some situations, the fish’s eyes may appear cloudy.

Signs your angelfish has pop-eye

Angelfish pop-eye is a disorder in which the eyes of the fish protrude unnaturally from their sockets as a result of aberrant growth. Several factors contribute to this illness, including infections, parasites, and poor water quality. It may be visible in the eyes of one or both fish. 

There are several indicators that your Angelfish is suffering from pop-eye. One of the most common symptoms of pop-eye is significant enlargement in one or both eyes. Other fish do not have naturally occurring telescoping eyes and hence do not display this trait.

Swelling of the Angelfish’s eyes is caused by fluid leaking beneath the eyeball. The eyes might become foggy in some circumstances when the cornea is ruptured. It’s also possible for one or both eyes to be discoloured or bloodshot. 

Even after treatment, in severe pop-eye cases with burst eyeballs, the fish may stay blind in that eye. However, in certain circumstances, the eyes may not show any evident indicators until the illness worsens.

Causes of pop-eye disease 

Popeye can be caused by a variety of factors, and the exact underlying condition isn’t always identified. An injury, illness, or poor water conditions in the aquarium are the most typical causes of fish pop-eye. 

–       The issue is most likely caused by an injury rather than a chemical imbalance in the water if just one eye is affected (unilateral). A communal tank with only one pop-eye fish is particularly vulnerable in this situation. Your fish’s eye could be swelled as a result of a struggle with another fish, or it could have scraped against an abrasive object in the tank. If this occurs, keep a watch out for damage to the eye, which is a dead giveaway that exophthalmia is the consequence of an accident. The bulging eye will usually fade away when the injury heals. The fish, on the other hand, should be closely monitored at all times since the infection has the potential to cause vision loss in the injured eye.

–       Infection is another cause of pop-eye. This is almost certainly visible in both eyes. Bacteria, fungi, and parasites are among the species that can cause infection. If the fish has both pop-eye and dropsy (belly edema), the outlook is not good. Internal issues like kidney failure or a metabolic disorder might cause fluid build-up, making it difficult to treat your fish. 

–       Pop-eye can also be caused by poor water conditions, and delicate fish will be the first to be impacted. If one or more of the fish in your tank has pop-eye, check the chemistry of the water to see if something is wrong. Consider the phenomenon of gas supersaturation in the water, which may be observed as small bubbles on the surfaces of the aquarium and even in the skin of the fish. Gas can build up in the eyes as a result, causing them to protrude out of their sockets. 

Is it possible for pop-eye in angelfish to disappear on its own? 

The symptoms and severity of pop-eye differ from fish to fish. If you allow the condition to take its course on its own, you are putting your fish’s health in the hands of chance. Unfortunately, it has the potential to go either way. 

Pop-eye in Angelfish can improve over time if the surrounding environment is conducive to healing. The symptoms may subside on their own, and the fish eyes will be restored as a result.Some people develop a persistent problem as a result of untreated pop-eye if the issue is not addressed. If you let pop-eye in Angelfish to decompose on its own, it might take many weeks to several months. If the cornea is injured, the healing process will be significantly more difficult. 

Keep in mind that serious damage caused by pop-eye may never entirely heal if not treated immediately. Although the edema may subside, the eyes will continue to be clouded. In certain situations, the eyes will stay discolored or bloodshot for an extended period of time. 

Extreme corneal rupture or damage may result in your fish losing his or her vision permanently. In general, it is not a good idea to let pop-eye in Angelfish die on its own accord. It is preferable to administer proper therapy as soon as possible. In fish, the symptoms and severity of pop-eye differ. Leaving the condition to its own devices puts your fish’s health in jeopardy. Regrettably, it might go either way. 

Pop-eye in Angelfish can improve over time if the environment is favourable. Once the symptoms have subsided, the fish eyes will return within a few days or weeks. However, in other circumstances, if Popeye is not treated right away, he will deteriorate. 

It can take several weeks to months if you left pop-eye in Angelfish to proceed on its own. If the cornea is injured, the healing time will be significantly longer. 

It’s crucial to note that if Pop-horrific eye’s injuries are not properly treated, he may never fully recover. Although the edema may subside, the eyes will remain clouded. The eyes may remain discoloured or bloodshot in some circumstances. 

If your fish’s cornea is severely damaged or ruptured, it may become permanently blind. Overall, allowing pop-eye in Angelfish to die on its own is not a good idea. It is preferable to administer proper treatment as soon as possible.

Is it possible for pop-eye to spread to other fish in the tank? 

There are a variety of reasons why Angelfish might become infected with Pop-eye. Physical injury, bacterial illness, and poor tank quality are common causes. 

Although pop-eye is not contagious, it can infect other Angelfish. Pop-eye can’t be passed down from one Angelfish to the next. However, because they are exposed to the same environmental conditions, the disease has the potential to spread. 

Pop-eye that develops as a result of physical trauma, such as brawls, may be difficult to spread. Pop-eye, on the other hand, will spread faster due to poor water quality and bacterial infection.

How do you treat pop-eye in angelfish?

Depending on the reasons for pop-eye in Angelfish, treatment might be very particular. So, after you’ve noticed this ailment, the first thing to check for is the likely explanation. 

If you have a bacterially infected fish, you should first place it in a quarantine tank. Broad-spectrum antibiotics should be used to begin your treatment. If the fish’s eyes are injured, aquarium salts should be added to the mix. 

Adverse water conditions such as pH drift, ammonia, and nitrate levels can be severe issues. To ensure good quality, consider doing partial water changes in the tank. Correcting the water problem will alleviate any additional tension. 

A clean tank reduces the risk of parasites and bacterial infestation. If you have more than one diseased fish, it’s preferable to treat the entire tank with antibiotics. 

Consider upgrading the quality of your fish’s food. The fish’s immune system will be boosted with high-quality food, which will help them battle the virus.

How to prevent pop-eye disease?

In the case of Popeye, the concept that prevention is better than treatment is also true. It is preferable to prevent it from occurring in the first place. 

In Angelfish, there is no clear way to prevent Popeye. It is preferable to make every effort to eliminate all possible causes. To begin, make sure your tank is set up properly for the fish. 

In addition to checking the temperature and pH levels, it is also important to monitor the nitrate and ammonia levels. Ensure that all hazardous substances that are harmful to the health of fish are removed. 

This may be performed by doing regular partial water changes as well as using an active filtration system. Dealing with the invaders should be your priority if you observe any bacterial or parasite invasion. 

To avoid physical damage resulting in Popeye, don’t overcrowd your tank. Overcrowding the tank increases the likelihood of poor water quality. 

To avoid accidental damage, only use appropriate substrates and decor for Angelfish. Remove any abrasives, hard pebbles, or sharp edges that may cause your fish to bruise. If decongestion of the substrates becomes necessary, it should be considered.

Also, only give your angelfish high-quality food that they can ingest in a matter of minutes. Remove any leftovers from the tank in order to maintain its quality and avoid dangerous build-up.


In this post, we answered the question “Is my angelfish with pop-eye disease?”. We discussed the most common symptoms and how to treat and prevent pop-eye disease.

If you have any questions or concerns, please let us know in the comments section below!

Frequently Asked Questions (FAQs): Is my angelfish with pop-eye disease?

In angelfish, how do you handle pop-eye? 

Feeding this fish a broad-spectrum antibiotic diet given by your pet supplier or veterinarian can help to remove the infection quickly. If more than one fish is affected, antibiotics may need to be administered to the main tank as well. 

Is it true that pop-eye disease disappears with time? 

The swelling might take weeks or months to go down, and damage to the fish’s cornea can take even longer to repair. However, even if the swelling subsides, a serious damage to the fish’s eye may never be completely healed due to its location.

Is Melafix effective in the treatment of pop-eye?

Using MELAFIX cure fish in the treatment of API bacterial diseases such as pop-eye, fin and tail rot, eye cloud, body slime, and mouth fungus may be effective.

What’s the deal with my angelfish’s red eyes? 

Any angelfish with red-eye is fully mature and in good health. The red-eye does not affect all kinds.

What is causing my fish to move in the other direction of where it should be? 

Positive buoyancy disorder, which affects goldfish in particular, is the most common type of swim bladder illness. In this condition, the fish floats at the surface of the water or on its side. The most likely cause is an excessive expansion of the swim bladder. In most cases, overinflation occurs in the posterior chamber. 


Sharpe, S. 2022. Popeye Disease in Aquarium Fish.

Sean B. 2021. Popeye on Emperor Angelfish: Causes and Treatment.