Can Fish Have Strokes? (7 Interesting Health Facts)

Many people ask the question, that can fish have strokes? If you want to own fish, then you should know which thing is good for them or not. For this, you have to do in-depth research on the pet that you want to keep.

Can fish have strokes? Of course, they can have strokes because these animals have a brain. Strokes may happen when there is a poor supply of oxygen and nutrients to the brain. That is why it is said that fish may have strokes. But there is no report of such cases yet.

In this article, we will discuss Can fish have strokes, the signs of fish dying, and many other things related to these. Let’s dive into the details of can fish have strokes.

Can fish have strokes
Can fish have strokes?


Why Is My Fish Swimming On Its Side?

Can fish have strokes?  When fishes are suffering from any swim bladder issues, then fishes show this type of symptoms. They swim on its sides. Fish laying on the side at the bottom of the tank are bladder issues. In this condition, fishes struggle to attain the normal position.


How Do I Know If My Fish Is Dying?

You should know all the signs that tell you fish is dying because you can save them from dying by giving good treatment by eliminating the cause behind the sickness. Following are the signs that tell us fish is dying. If there is a Fish stroke, swimming will be affected.


Fish Gasping

When water is toxic due to nitrites and ammonia, fish feels difficulty breathing in such water. This force fishes to come over the surface and then breathe. It can be fatal if there is so much toxicity in water.



One of the most common symptoms is a white spot on the fish’s body. It means that there is fish stress. It can also be due to some internal issues. It may infect other living creatures in the tank. You should consult with your vet in this case.


Appetite Loss

You will see the significant appetite loss in fish when about to die. Often, forceful feeding is stressful for fish, which is why they stop eating.


Strange Swimming Pattern

Under stress, there is a change in the pattern of fish. You see that they rub their bodies with gravel or rocks. They will also fold there on their sides. These are also signs of dying or stress. You should immediately solve this problem to make them calm.


Mentation of Fishes

It is a state where fishes are aware of their surroundings. Many fishes want to lie at the bottom and do rest. Few of them take naps by lying on their side. But if you see any other strange thing, then it means that there is some internal problem with your fish.


Respiration Rate

Like us, when fishes are in stressful conditions, then they breathe at a fast rate. They require a lot of oxygen for our cells. When they are vict9m of some diseases, their normal functioning is affected. Fungus bacteria may cover the gills of fishes by secreting the mucous; then, fishes feel difficulty during respiration.


Color Fading

If you see that there is colour fading in your fishes, then it means that they are getting stressed. Stress can be due to some environmental factors. We know that fishes are cold blood animals, and they will not maintain their body temperature constant when there is external fluctuation in the environment. So, they can get stressed because of the environmental changes.


How Do You Know If A Fish Is Having A Seizure?

Following are the signs that tell us fish is having seizures.

  • Fall from any height without any reason
  • Loss of bladder control and bowel movement
  • Stop breathing and breathing problems
  • Consciousness loss
  • Body stiffening
  • Legs and arms jerking movements
  • Staring


Can Fish Be Stroked?

Can fish have strokes?  Yes, they may have strokes, but many researchers say that they have not seen any reported stroke cases in fishes. Fishes have a brain, and there may be a stroke. Scientific studies also reveal that there can be no stroke in fish.


Stroke Symptoms In Fish

Many vets say that there are symptoms that tell us that fish are having a stroke, and these symptoms are following.

  • They will float upside and downside on their sides
  • Seizures
  • Appetite loss and eating improperly
  • Confusion
  • Motor function loss


Causes of Symptoms

If fishes are showing the signs mentioned above, you need not worry about this. You should consult with your vet. The vet will diagnose the cause of symptoms and then tell you the treatment and preventive measures to solve the problems.


Can Betta Fish Have Strokes?

Can fish have strokes? Yes, they may have strokes. It can be because of stress. When you are going to touch, they respond at you and may also bite you. It is because they get scared when someone touches them. Touching also affects natural coating. When you touch it, then there is the removal of slime coating. In this way, fish is vulnerable to get diseases.

Can fish have strokes
Can fish have strokes?


Can Betta Fish Get Brain Damage?

Can fish have strokes? There is a chance of getting brain damage in fishes, but when the gills of fishes become damaged, gills rapidly dry, and many internal organs also get damaged. Touching and holding improperly can also result in organ and brain damage.


Can Betta Fish Become Paralyzed?

No, Betts fishes cannot become paralyzed. Many people say that fish are paralyzed, but it is only a myth. If fish is not moving or properly swimming, it can be due to sickness or other organ damage. But fishes are not paralyzed.


Can Betta Fish Get Concussions?

Yes, they may get concussions. Many cases tell us fishes get concussions, but it is naturally. When there is a fall from any specific height, or they may jump out from the tank, they may get concussions.


How To Fix Swim Bladder In Goldfish?

If there is an enlarged intestine and stomach, it may be because of the swim bladder issues. It would help if you did not feed them anything for about three days. At this time, you should increase the water temperature to 78 to 80 Fahrenheit. During all the treatment, this temperature is very affected.


What Causes Swim Bladder In Fish?

Swim bladder can be due to swim bladder compression. It can be because of the gulping air, constipation, overeating, rapidly eating and distended stomach etc. eating dry and freeze-dried food can cause stomach enlargement and result in the stomach and intestinal tract.

  • When there is less temperature, the fish’s digestive system slows down. This result in the enlargement of the gastrointestinal tract. This put pressure on the swim bladder.
  • Enlargement of abdominal organs results in swim bladder damage. Cyst around kidneys, fatty layer in the liver may also affect the swim bladder.
  • Bacterial and parasites infection can also result in inflammation of the swim bladder. Any damage or fall in the tank or striking with some objects results in swim bladder damage.
  • Many fishes are there that have inborn diseases related to swimming bladder. You will see the symptoms at an early age if it is inborn.


How To Treat Swim Bladder In Betta Fish?

You should set the water temperature at 78 to 80 Fahrenheit during the treatment of swim bladder in fish. You should not give them anything for eating for about three days if you see intestine and stomach enlargement.

On the fourth day of treatment, you can give the skinned or cooked pea to fish. It is best to feed them with frozen pea. Remove the skin of the pea, then give it to the fish. You can give these things to them until it returns to normal daily food. If you see an infection, you can use broad-spectrum antibiotics and immediately consult with your vet for safe and good treatment.

Many other supportive treatments are also there like

  • Keep the water of the tank at 78 to 80 Fahrenheit
  • Adding aquarium salt in the tank is also good.
  • It would help if you reduced the water level in the tank in this way fishes can easily move in a tank.
  • With a strong current, you can reduce the water level in the tank.

If there is any damage on the body surface of fishes and fish exposing area in the air, you can apply the stress coat on an exposed area. This will be helpful for the development of the sores.

If none of the above treatments is effective, then the last thing is euthanasia. This is the last option that your vet can do.


Can Fish Have Heart Attacks?

Yes, they have heart attacks. Can fish have strokes? Many reasons are there behind the heart attack. Fishes are tiny living creatures, but there is a brain in them. That is why there are chances of getting a stroke in them. Their brain can stop suddenly when they fall from some specific height. They may die at that spot when there is extreme damage.



Fish floating on the side but not dead can be because of the stress conditions. Stress is the most common reason for heart attack in fish. It can be because of several reasons. When there is not spacious space in the tank, and there is fish overcrowding, it results in stress. They can stop eating in stressful conditions.


Cranky Tanks

Fish swimming weird; it can happen when there is no proper arrangement in tanks. The environment of the tank can cause this condition. It can upset the fish. It is important to use a precise aquarium with a good structure and wall. In cranky tanks, the animals are insecure, and they may eat other animals in tanks because of stress. It can also cause heart attacks in fish.


Sudden Water Changes

Can fish have strokes? Oxygen is very necessary for humans. In the same way, water is very necessary for them. It is considered that water is oxygen for fishes. You should pay attention to the quantity and quality of water in the water tank so that fish can live happily.

Many people are there that use distilled and condensed water for pets, but few are there that use tap water which is not good for them. It is not considered safe at all if you are using tap water. You should change the water once or twice a day before turning it to orange.

When you remove old water, then there is complete environmental change. They feel insecure and get scared at that time and may get a heart attack, but the risk is very low. Many people don’t know how to change or add water to the tank. When they change or water in an aquarium improperly, it may result in stress in fishes.


Loud Sounds

Loud sound also lead to a heart attack in fish. Fishes are very sensitive organs, and they can get stressed and get sacred with even minute changes.

Can fish have strokes
Can fish have strokes? Can fish have strokes in the wild? Can fish have strokes in captivity?


Final Verdict On Can Fish Have Strokes

They may have a stroke because these animals have a brain. When there is a lack of nutrients and a poor supply of oxygen to the brain, it may result in a stroke. That is why you should provide good nutrients and a good oxygen supply.

As a pet lover, make sure to learn about pet more and give your pet fish a good and comfortable life!

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