Swollen Bellies in Angel Fish

Why Is My Angelfish Bloated?

Swollen bellies are a common issue among angelfish, and there can be many causes.

While it is not always a cause for concern, it is important to understand the potential causes and remedies in order to address any issues as soon as possible.

In this post, we will cover some of the most common causes of bloated bellies in angelfish and what you can do about them.

1. Pregnancy & Eggs

Let’s begin with the most logical reason, which is pregnancy.

Obviously, angelfish are not able to reproduce in the literal sense of the word as they are egg layers, but they do retain their eggs within their bodies and can develop tummy bulges as a result.

To know whether or not your fish is pregnant, pay close attention to its behavior for a period of time.

If it’s pregnant, the female angelfish should be sluggish while carrying eggs, so you should notice her resting more than usual and spending the majority of her time in a specific part of the aquarium.

Also, her partner should remain in one location around the tank, cleaning it and making it ready for the female to lay her eggs.

If you suspect “pregnancy,” and there are no obvious indications of distress, you should be able to find some eggs around the nesting site very soon.

Your female angelfish should also return to her normal slender form after the eggs are laid and fertilized.

2. Constipation

Constipation, although usually a minor problem, can rapidly develop into a more serious situation.

It might soon progress to a fatal outcome if not recognized and treated promptly.

Angelfish that consume too much food will soon become unable to digest their meals and will become bloated as a result.

Unfortunately, this is frequently difficult to confirm since the most apparent symptom is also the most complicated to detect.

To be certain that your fish is constipated, check if it can digest food and defecate.

A constipated fish will most likely avoid eating for a while, or at the very least eat less than usual. If that’s the case, you should feed your fish fiber-rich food to help it get rid of the accumulated feces.

3. Tumor

Unfortunately, fish can get tumors throughout their lives, just like people can. And if an undesirable tumor forms in their stomach or nearby organs, the sick fish may appear extremely swollen and bloated.

Signs of illness might differ depending on the position, size of the tumor, and its development. It’s possible that it won’t eat at all, or that it will become sluggish or cling to the bottom of the tank.

Larger fish that are in pain will start swimming erratically, but others can quickly become extremely hostile.

Whatever the case, if you detected some apparent symptoms of illness, you should immediately visit your veterinarian.

In most situations, there is no cure, but in some circumstances, the fish may live comfortably with the growth.

4. Dropsy

The condition known as Dropsy refers to the swelling of delicate tissues in a bodily cavity, such as the abdomen, owing to an accumulation of water and other fluids.

It is a condition in which fluid accumulates in the body of a fish. It develops because of environmental stressors.

It’s not simple, but dropsy can be treated when it’s detected early.

5. Other Causes

Internal parasites are one of the most common causes of swollen bellies in angelfish.

Hook-worms, fungus, and velvet are just a few of the parasites that can infest your fish and cause it to get bloated.

Parasites are generally introduced to an aquarium via new fish. They can be treated with antibiotics and non-iodized salt, which is not iodized.

Other possibilities for an angelfish’s bloated belly include kidney issues like a kidney infection, cysts, and malformations.

How to Prevent Bloating in Angelfish?

Although not all bloating conditions lead to health problems, prevention is always preferable to cure.

In order to prevent your lovely angelfish from getting constipation or worse, you only need some basic instructions:

  • Ensure that your pets are receiving the correct water parameters throughout their captivity and that they remain stable once you’ve found them. Their water, too, should be clean.
  • Feed your fish with appropriate, high-quality food and a wide range of snacks, and try not to overfeed them.
  • If you have a community tank, select your fish carefully and search for hints of stress or illness.


How Do I Treat Constipation in Angelfish?

The best way to treat constipation in angelfish is to feed them food that is high in fiber. This will help them get rid of the accumulated feces.

How Do I Prevent My Angelfish from Getting Constipated?

The best way to prevent constipation in angelfish is to feed them a balanced diet and to make sure that they have access to clean water.

What Is the Best Food for Angelfish?

Angelfish are omnivorous, so they do best on a diet that includes both plant and animal matter.

A good quality pellet food should form the basis of their diet, supplemented with live or frozen foods such as brine shrimp, bloodworms, and daphnia.

Some angelfish also enjoy eating blanched vegetables such as zucchini, carrots, and spinach.

How Often Should I Feed My Angelfish?

You should feed your angelfish 2-3 times per day. Each meal should be small enough that the fish can eat it all in a few minutes.

How Do I Know If My Angelfish Is Sick?

If your angelfish is sick, you can notice that it has lost its appetite, is swimming erratically, or is clinging to the bottom of the tank.

Also, you can see signs of infections such as cloudy eyes or open sores. If you think your angelfish is sick, you should take it to a veterinarian for treatment.

How Do I Prevent My Angelfish from Getting Sick?

The best way to prevent your angelfish from getting sick is to provide them with clean water and a balanced diet.

Also, you should quarantine new fish before adding them to your tank to make sure they are not sick.

What Is the Life expectancy of an Angelfish?

The life expectancy of an angelfish is 10-12 years. However, many factors can affect their lifespans, such as the quality of their diet, the water conditions in their tank, and whether or not they are sick.

How Often Should I Change the Water in My Angelfish Tank?

You should perform water changes in your angelfish tank every week. During each water change, you should remove 20-25% of the water from the tank and replace it with fresh, clean water.

Do Angelfish Need a Filter?

Angelfish need a filter in their tank to remove harmful toxins from the water and to keep the water clean. Also, the filter helps to keep the water oxygenated.

Do Angelfish Need Plants?

Angelfish need plants in their tank for two reasons. First, the plants help to keep the water clean by absorbing toxins. Second, the plants provide shelter and a place to hide for the fish.

Last Words

It is important to remember that not all cases of a swollen belly are deadly, and many times the fish can be cured with some simple at-home treatments.

So, take a few minutes every day to inspect your fish and look for any changes in their appearance or behavior.

If you see anything that concerns you, take your fish to a vet as soon as possible.

We hope you enjoyed reading this guide and that you learned something new today.

As always, feel free to leave us a comment if you have any questions.