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Betta Cloudy Eye Disease: Is It Deadly?

Hey there, fish lovers! If you have a Betta fish, then you already know how beautiful and unique they are. But like all living creatures, they can get sick too. One common ailment that Betta fish can suffer from is cloudy eye, also known as Betta Eyecloud disease.

betta cloud eye

In this article, we will discuss everything you need to know about Betta Eyecloud disease, including its symptoms, causes, treatments, prevention, and more.

“Don’t let your Betta Fish fall ill! Check out our guide on common Betta Fish Diseases and how to prevent them.” Betta Fish Diseases

What is Cloudy Eye?

Cloudy Eye is a condition in which the eyes of Betta fish become cloudy, hazy, or milky. This condition can affect one or both eyes of the fish. It is important to note that a cloudy eye is not a disease itself but rather a symptom of an underlying problem.

Symptoms of Cloudy Eye in Bettas

The most noticeable symptom of the cloudy eye in Bettas is the cloudiness of the eyes. However, there are other symptoms to look out for, such as:

  • Lethargy
  • Loss of appetite
  • Behavioral changes
  • Swollen eyes
  • Redness around the eyes
  • Bulging eyes

If you notice any of these symptoms in your Betta fish, then it is important to take action immediately.

betta cloudy eye infographic

Causes of Cloudy Eye

There are several possible causes of cloudy eye in Betta fish. These include:

Internal Parasites

Internal parasites can cause a number of health problems in Betta fish, including cloudy eye. These parasites can damage the fish’s internal organs, leading to a weakened immune system and susceptibility to infections.

Bacterial Infection

Bacterial infections are another common cause of cloudy eye in Betta fish. These infections can occur due to poor water quality, overcrowding, or stress. The bacteria can attack the eyes of the fish, causing inflammation and cloudiness.

Nutritional Deficiencies

Betta fish require a balanced and nutritious diet to stay healthy. If their diet lacks essential nutrients like vitamins and minerals, it can weaken their immune system and make them more susceptible to infections and diseases, including cloudy eye.

Poor Water Quality

Poor water quality is one of the most common causes of cloudy eye in Betta fish. Dirty water can harbor harmful bacteria and parasites that can infect the fish’s eyes and other parts of their body. Additionally, high levels of ammonia and nitrite can also cause cloudy eye.

Is Cloudy Eye Contagious?

No, cloudy eye is not contagious between Betta fish or to other species of fish. However, if the underlying cause of the cloudy eye is a contagious disease, then it is possible for other fish to get infected.

How to Treat Cloudy Eye

The treatment for cloudy eye in Betta fish depends on the underlying cause of the condition. Some possible treatments include:


If the cloudy eye is caused by a bacterial infection, then medication such as antibiotics may be prescribed by a veterinarian. These medications can be added to the fish tank or given orally to the fish.

Water Changes

If the cause of the cloudy eye is poor water quality, then a simple water change may be enough to clear up the problem. It is important to test the water regularly and maintain a clean and healthy environment for your Betta fish.

Dietary Changes

If the cloudy eye is caused by a nutritional deficiency, then a change in diet may be necessary. Feeding your Betta fish a balanced and nutritious diet can help strengthen their immune system and prevent future health problems.

How to Prevent Cloudy Eye

Preventing cloudy eye in Betta fish is all about maintaining a clean and healthy environment for them. Here are some tips to help prevent cloudy eye:

  • Keep the water clean and well-filtered
  • Do regular water changes
  • Avoid overcrowding the tank
  • Feed your fish a balanced and nutritious diet
  • Quarantine new fish before introducing them to the tank
  • Monitor your fish regularly for any signs of illness or injury

Is Cloudy Eye Fatal To Bettas?

Cloudy eye is not necessarily fatal to Bettas. However, if left untreated, it can lead to more serious health problems and even death. It is important to take action as soon as you notice any symptoms of cloudy eye in your Betta fish.

Can All Fish Get Cloudy Eyes?

No, not all fish can get cloudy eyes. Cloudy eye is more common in Betta fish due to their susceptibility to certain diseases and infections. However, other species of fish can also get cloudy eyes if they are exposed to the same underlying causes, such as poor water quality or nutritional deficiencies.

In conclusion, cloudy eye is a common health problem that can affect Betta fish. It is important to be aware of the symptoms, causes, treatments, and prevention methods to keep your Betta fish healthy and happy.

By maintaining a clean and healthy environment for your fish and providing them with a balanced and nutritious diet, you can help prevent cloudy eye and other health problems. Remember to always monitor your fish for any signs of illness or injury and take action immediately if you notice anything out of the ordinary.

Recently asked questions

Why is my betta fish’s eye foggy?

A foggy or cloudy eye in a betta fish can be caused by a variety of factors, including bacterial or fungal infections, parasites, poor water quality, or nutritional deficiencies. It is important to determine the underlying cause of the cloudy eye and take appropriate measures to treat the condition.

Are cloudy fish eyes okay?

No, cloudy fish eyes are not okay. Cloudy eyes can be a sign of an underlying health issue, such as infection or poor water quality. It is important to address the issue as soon as possible to prevent further health problems and potential death.

Why is there white around my betta fish’s eye?

White around a betta fish’s eye can be a sign of a fungal infection, which can cause cloudiness and inflammation. It is important to treat the infection promptly with an appropriate medication to prevent further damage to the eye and potential loss of the fish.

What fish medicine is good for cloudy eyes?

The type of medication that is good for cloudy eyes in fish depends on the underlying cause of the condition. Antibiotics, antifungal agents, and parasiticides may be used to treat bacterial or fungal infections, parasites, or other underlying causes. It is important to consult with a veterinarian or aquatic specialist to determine the appropriate medication for your specific situation.

Credit to: Aqua Showroom

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About Dr.Chamika

Hello, I'm Dr. Chamika. I am a Researcher in Water quality, Aquatic organisms, and Environmental chemistry. I am a passionate fish keeper, with10 years of experience. My mission is to help other aquarists experience the joy of fish keeping.