How to Care for Angelfish: Tank Setup, Diet, Tank Mates & More

If you’re looking for a stunning and graceful fish to add to your aquarium, Angelfish is a great choice. These fish are known for their unique shape, beautiful colors, and peaceful temperament. However, like any other pet, Angelfish require proper care and attention to thrive in their environment.

Angelfish require a spacious aquarium with suitable water conditions, a varied diet, and a peaceful environment. They need a pH range of 6.5-7.5 and a temperature range between 75-82°F. The aquarium should be planted, and regular water changes should be performed to ensure their health. Proper filtration and aeration are also essential for their well-being.

In this ultimate care guide, we’ll cover everything you need to know about caring for your Angelfish, from setting up their tank to providing them with the right diet and environment. I’ve been a fish enthusiast for years and have personally kept Angelfish in my aquarium. Through my experience, I’ve learned the best practices for keeping these fish healthy and happy.

Whether you’re a beginner or an experienced fish keeper, this guide will provide you with all the information you need to care for your Angelfish. By the end of this article, you’ll have a better understanding of what it takes to keep these beautiful fish thriving in your aquarium.

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Species Summary

Angelfish are a popular freshwater fish that are known for their unique shape and vibrant colors. In this section, we will provide an overview of the Angelfish species, including their origin, appearance, size, lifespan, growth rate, behavior, and temperament.


Angelfish are native to the Amazon Basin in South America, specifically the countries of Brazil, Peru, and Colombia.

They are also found in other parts of the world, including Florida and Hawaii, where they have been introduced as a result of the aquarium trade.


Angelfish are known for their distinctive triangular shape and elongated fins.

They come in a variety of colors, including silver, black, and gold, and can have stripes or spots on their bodies. Their fins can be long and flowing or short and stubby, depending on the species.


Angelfish can grow up to 6 inches in length, with some species reaching up to 10 inches.

They are relatively slow-growing fish, with growth rates varying depending on the species and the conditions in which they are kept.


Angelfish can live up to 10 years in captivity, although their lifespan can be shorter in the wild. Proper care and maintenance can help ensure that your Angelfish live a long and healthy life.

Growth Rate

The growth rate of Angelfish can vary depending on a number of factors, including the species, the temperature of the water, and the quality of the food they are given.

Generally, Angelfish are slow-growing fish, and it can take several months or even years for them to reach their full size.

Behavior & Temperament

Angelfish are generally peaceful fish, but they can be territorial and aggressive towards other fish, especially during breeding season.

They are best kept in pairs or small groups, and should be housed in a tank with plenty of hiding places and plants to help reduce stress and aggression.

Personally, I have found that my Angelfish are very curious and playful fish.

They love to explore their tank and interact with me when I am feeding them. With proper care and attention, Angelfish can make a great addition to any freshwater aquarium.

Setting up the Tank

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As a proud owner of Angelfish, setting up the perfect tank is crucial for their well-being. Here are some important factors to consider when setting up your tank:

Choosing the Right Tank Size

The size of your tank is an important factor to consider when keeping Angelfish. A minimum of 20 gallons is recommended for a pair of Angelfish to thrive.

Keep in mind that the bigger the tank, the better, as it provides more swimming space and helps maintain water quality.


Angelfish prefer low to moderate lighting, so avoid bright lights that can cause stress. Consider using LED lights that mimic natural daylight and can be adjusted to different levels of brightness.

Setting up the Filtration System

A good filtration system is essential for maintaining a healthy and clean tank.

Choose a filter that can handle at least three times the volume of your tank and make sure to clean it regularly to prevent any build-up of harmful bacteria.


Angelfish need a well-oxygenated environment to thrive. Consider adding an air pump or a powerhead to improve water circulation and increase oxygen levels.


Angelfish are tropical fish and require a consistent water temperature between 75-82°F. Invest in a reliable heater and thermometer to maintain the ideal temperature for your fish.

Adding Decorations and Substrate

Angelfish love to explore their surroundings, so provide plenty of hiding spots and decorations such as rocks, driftwood, and caves.

Use a sand or gravel substrate that is easy to clean and won’t harm your fish.


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Adding live plants to your tank not only enhances its aesthetic appeal but also provides a natural environment for your fish.

Choose plants that are compatible with Angelfish, such as Amazon Sword, Java Fern, and Anubias.

When setting up your Angelfish tank, keep in mind that every fish is unique and may have different requirements.

Monitor your fish closely and make adjustments as needed to ensure they are happy and healthy.

Personally, I remember setting up my first Angelfish tank and feeling overwhelmed by all the different factors to consider.

But with a little research and patience, I was able to create a beautiful and healthy environment for my fish to thrive in.

Water Quality and Maintenance

Maintaining a healthy environment for your Angelfish is crucial to ensure their longevity and overall well-being.

Water quality is one of the key factors that contribute to their health. In this section, we’ll cover the essential aspects of water quality and maintenance that you need to know to keep your Angelfish healthy and happy.

Maintaining Proper Water Temperature

Maintaining the right water temperature is crucial for the health of your Angelfish. The ideal temperature range for Angelfish is between 75°F to 82°F.

I remember when I first got my Angelfish, I made the mistake of not checking the water temperature regularly.

This led to a drop in temperature, which resulted in my fish getting sick. To avoid this, I recommend investing in a reliable aquarium thermometer and checking the temperature regularly.

Testing and Adjusting Water pH Levels

The pH level of the water is another critical factor that affects the health of your Angelfish. The ideal pH range for Angelfish is between 6.8 to 7.8.

I learned this the hard way when I noticed my fish were getting stressed and not eating properly. After testing the water, I found out that the pH level was not within the recommended range.

To adjust the pH level, you can use a pH testing kit and add pH adjusters as necessary.

Water Hardness

Water hardness is another essential aspect of water quality that you need to consider. Angelfish prefer slightly soft to moderately hard water, with a range of 3 to 8 dKH.

I found that adding driftwood or almond leaves to the aquarium can help maintain the desired water hardness level.

You can also use a water hardness testing kit to monitor the water hardness level and adjust it as necessary.

In conclusion, maintaining proper water quality and performing regular maintenance is crucial for the health and well-being of your Angelfish. By following the tips outlined above, you can ensure that your fish thrive in a healthy and happy environment.

Performing Regular Water Changes

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One of the most important aspects of caring for Angelfish is performing regular water changes.

As a responsible pet owner, it is your duty to ensure that your fish have a clean and healthy living environment. In this section, I will discuss the importance of water changes and how to perform them.

Firstly, water changes help to remove harmful toxins and chemicals from the tank.

Over time, waste products such as uneaten food, fish excrement, and decaying plant matter can build up and release harmful chemicals into the water.

These chemicals can cause a range of health problems for your fish, including stress, disease, and even death.

Secondly, water changes help to maintain a stable and healthy environment for your fish.

By removing old and dirty water, you can replace it with fresh, clean water that is free from contaminants. This helps to maintain a stable pH level and prevent fluctuations in temperature and water chemistry.

So how often should you perform water changes? The answer depends on the size of your tank, the number of fish you have, and the type of filtration system you use.

As a general rule, it is recommended to perform a 25% water change every two weeks. However, if you have a larger tank or a larger number of fish, you may need to perform water changes more frequently.

When performing a water change, it is important to use a de-chlorinator to remove any chlorine or chloramines present in the tap water. Chlorine and chloramines can be harmful to your fish and can cause stress and disease.

Additionally, it is important to match the temperature and pH of the new water to the existing water in the tank to avoid shocking your fish.

In conclusion, performing regular water changes is crucial for the health and wellbeing of your Angelfish. By removing harmful toxins and chemicals from the water, you can create a clean and healthy living environment for your fish.

Remember to use a de-chlorinator and match the temperature and pH of the new water to the existing water in the tank. By following these simple steps, you can ensure that your Angelfish live a long and healthy life.

Personally, I have found that performing regular water changes not only keeps my fish healthy, but it also helps to keep the tank looking clean and clear.

I love watching my fish swim around in their clean and healthy environment, and I know that I am doing my part to ensure their wellbeing.

Feeding and Nutrition

Choosing the Right Food

Angelfish are omnivores, which means they eat both plants and animals. You can feed them a variety of foods, including flakes, pellets, frozen or live foods.

Personally, I feed my Angelfish a mix of flakes and pellets, but I also give them frozen brine shrimp and bloodworms as a treat.

When choosing fish food, make sure to read the label and check the ingredients. Look for food that contains high-quality protein, vitamins, and minerals.

Feeding Schedule and Quantity

It’s important to establish a regular feeding schedule for your Angelfish. I feed my fish twice a day, once in the morning and once in the evening.

However, you may need to adjust the feeding schedule depending on the size and number of fish you have.

When feeding your Angelfish, only give them what they can eat in a few minutes. Overfeeding can lead to health problems such as obesity and poor water quality.

Supplemental Nutrition

In addition to their regular diet, Angelfish may benefit from supplemental nutrition. One option is to provide them with live or frozen foods such as brine shrimp or bloodworms.

These foods are high in protein and can help promote growth and overall health. Another option is to add vitamins and minerals to their food.

You can find liquid supplements at your local pet store or online. However, be careful not to overdo it with supplements as too much can be harmful to your fish.

Overall, feeding and nutrition are critical to the health and wellbeing of your Angelfish. By choosing the right food, establishing a feeding schedule, and providing supplemental nutrition, you can ensure that your fish live a long and healthy life.

I have found that by following these guidelines, my Angelfish are happy, healthy, and always eager to eat.

Behavior and Socialization

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Understanding Angelfish Behavior

Angelfish are known for their graceful movements and unique personalities. Understanding their behavior is key to providing them with the best care possible.

Angelfish are naturally curious and will explore their environment. They are also territorial and can become aggressive towards other fish if they feel their space is being invaded.

Keeping Angelfish with Other Fish

When choosing tank mates for your angelfish, it’s important to keep in mind their territorial nature. Avoid adding fish that are too small or too aggressive, as they may be seen as a threat.

Good tank mates for angelfish include peaceful community fish such as tetras, rasboras, and corydoras.

Best Tank Mates for Angelfish

Here are some of the best tank mates for angelfish:

  1. Tetras
  2. Rasboras
  3. Corydoras
  4. Otocinclus
  5. Gouramis

How Many Angelfish Should be Together

Angelfish are social creatures and do best when kept in groups of 5 or more. However, it’s important to make sure the tank is large enough to accommodate them. A good rule of thumb is to have at least 20 gallons of water per angelfish.

Personally, I have found that my angelfish thrive when kept in a group of 6. They are always swimming together and seem to be much happier than when kept alone.

Common Health Issues

Identifying and Treating Common Diseases

Angelfish are generally hardy fish, but they can still be prone to certain diseases. One of the most common diseases is Ich, which is a parasitic infection that causes white spots on the fish’s body.

If you notice your angelfish scratching against objects in the tank and developing white spots, it’s likely they have Ich. The good news is that Ich is treatable with medication that can be found at most pet stores.

Another common disease is Fin Rot, which is caused by bacterial infections. If you notice your angelfish’s fins becoming frayed or discolored, they may have Fin Rot.

The best way to treat Fin Rot is to keep the tank clean and treat the water with antibiotics.

Lastly, Hole in the Head Disease is another ailment that can affect angelfish. This disease is caused by poor water quality and can cause small holes to form on the fish’s head.

If you notice your angelfish developing these holes, it’s important to improve the water quality and feed them a varied and nutritious diet.

Preventing Health Issues

The best way to prevent health issues in your angelfish is to maintain a clean and healthy tank environment. This means regularly cleaning the tank and filter, monitoring the water quality, and feeding your fish a varied and nutritious diet.

It’s also important to avoid overfeeding your angelfish, as this can lead to digestive issues and other health problems.

Another way to prevent health issues is to quarantine any new fish before adding them to the main tank. This can help prevent the spread of diseases and parasites to your existing fish.

From my personal experience, I had an angelfish that developed Fin Rot due to poor water quality. I quickly realized my mistake and took action to improve the water quality and treat the fish with antibiotics.

Thankfully, my angelfish made a full recovery and is now thriving in a healthy tank environment.

Signs of Healthy Angelfish

As a fish owner, it’s important to ensure that your angelfish are healthy and happy. Here are a few signs to look out for:

  1. Bright and Vibrant Colors: Healthy angelfish have bright and vibrant colors. If your fish appear dull or discolored, it could be a sign of illness.
  2. Active and Alert: Healthy angelfish are active and alert. They should be swimming around and exploring their environment. If your fish are lethargic or hiding, it’s a sign that something may be wrong.
  3. Clear Eyes: The eyes of healthy angelfish should be clear and free from any cloudiness or discoloration.
  4. Healthy Fins: The fins of healthy angelfish should be fully extended and free from any tears or damage.

Personally, I’ve found that the best way to ensure that my angelfish are healthy is to pay close attention to their behavior.

When I first got my angelfish, I noticed that they were hiding a lot and not very active. After doing some research, I realized that I needed to make some changes to their environment to make them feel more comfortable.

I added some plants and decorations to their tank, and within a few days, they were swimming around and exploring their new home.

Remember, the key to keeping your angelfish healthy is to provide them with a clean and comfortable environment, a balanced diet, and plenty of attention and care.

By paying attention to the signs of a healthy angelfish, you can ensure that your fish are happy and thriving.

Signs of Sick Angelfish

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As an angelfish owner, it’s important to know the signs of a sick fish. A healthy angelfish should be active, eat regularly, and have a bright coloration. Here are some of the signs that your angelfish may be sick:

  1. Loss of appetite or refusal to eat
  2. Swimming erratically or lethargically
  3. Clamped fins or fins that are held close to the body
  4. White or gray spots on the body or fins
  5. Labored breathing or gasping at the surface of the water
  6. Red streaks or hemorrhages on the body or fins

If you notice any of these signs, it’s important to take action quickly to prevent the spread of disease to other fish in your tank.

One of the first things you should do is test the water parameters to make sure they are within the appropriate range for angelfish.

Next, check the temperature of the water to make sure it’s not too hot or too cold. If the water temperature is off, adjust it accordingly.

If the water parameters and temperature are both within the appropriate range, it’s time to examine the fish more closely.

Look for any physical signs of injury or disease, such as open wounds, missing scales, or bloated bellies.

If you notice any of these signs, it’s best to isolate the sick fish in a quarantine tank to prevent the spread of disease to other fish in your main tank.

Remember, prevention is key when it comes to keeping your angelfish healthy.

Make sure to perform regular water changes, provide a healthy diet, and maintain a clean and well-maintained tank to prevent the spread of disease and keep your angelfish happy and healthy.

Personally, I once had an angelfish that started to swim erratically and refused to eat. Upon closer inspection, I noticed that it had white spots on its body. I quickly moved the fish to a quarantine tank and treated it with medication.

After a few days, the fish started to eat again and the white spots disappeared. It’s important to act quickly when you notice signs of sickness in your fish to give them the best chance of recovery.

Breeding Angelfish

Signs of Pregnant Angel Fish

Angelfish are known to be prolific breeders, but it can be difficult to tell when they are pregnant. However, there are a few signs to look out for:

  1. A bulging belly – this is the most obvious sign that your angelfish is pregnant
  2. Increased appetite – pregnant angelfish will eat more than usual to prepare for the upcoming spawning
  3. Aggressive behavior – pregnant angelfish may become more territorial and aggressive towards other fish in the tank


If you notice that your angelfish is pregnant, there are a few things you can do to ensure the best possible outcome for the fry:

  • Separate the pregnant angelfish from the rest of the fish in the tank to prevent them from eating the eggs or fry
  • Provide a separate breeding tank with plenty of hiding places for the fry to grow and develop
  • Keep the water temperature between 78-82°F and the pH levels between 6.5-7.0 to encourage healthy growth
  • Feed the pregnant angelfish a high-quality diet of live or frozen foods to ensure that they have the necessary nutrients for spawning and caring for the fry

When I first started breeding angelfish, I was surprised at how quickly they reproduced. It was a bit overwhelming at first, but with the right care and attention, it can be a rewarding experience.

Remember to always monitor the water quality and make sure that the tank is clean and well-maintained. With a little patience and dedication, you can successfully breed angelfish and enjoy watching the fry grow and thrive.

Recommended products:

  1. Aqueon 20 Gallon Aquarium Starter Kit – This kit includes a 20-gallon aquarium, a filter, a heater, and a LED light hood, making it a great option for those who want a complete setup for their Angelfish.
  2. Fluval E Electronic Heater – This heater is reliable and accurate, and can maintain a consistent water temperature between 68-93°F. It also has an LCD display that shows the current temperature and can be set to either Celsius or Fahrenheit.
  3. API Melafix – This medicine is a natural antibacterial remedy that can help to treat bacterial infections, fin rot, and tail rot in Angelfish. It is safe for use with live plants and can also help to promote healing and tissue regrowth.
  4. Aqueon QuietFlow LED PRO Aquarium Power Filter – This filter is appropriate for a 20-gallon aquarium and can handle the bioload of Angelfish. It is also quiet and has LED lights that indicate when it’s time to change the filter cartridge.
  5. Hygger Aquarium Air Stone Kit – This kit includes an air stone and a pump, which can provide aeration to your aquarium. It is a great way to oxygenate the water and keep your fish healthy.
  6. Fluval Bug Bites Tropical Formula – This food is made with high-quality protein sources like black soldier fly larvae and can help to promote growth and coloration in your Angelfish.
  7. API Freshwater Master Test Kit – This test kit can help you monitor the levels of ammonia, nitrite, nitrate, pH, and hardness in your aquarium water. It is important to test your water regularly to ensure that it is within safe ranges for your Angelfish.
  8. Seachem Prime – This water conditioner can help to detoxify ammonia, nitrite, and nitrate, making it safe for your Angelfish. It can also help to promote a healthy slime coat and reduce stress in your fish.
  9. Fluval Plant and Shrimp Stratum – This substrate is specifically designed for planted aquariums and can provide a natural environment for your Angelfish. It also contains nutrients that can help to promote plant growth.
  10. Finnex Planted+ 24/7 LED Aquarium Light – This light provides a customizable lighting schedule that can simulate sunrise, sunset, and moonlight. It is also energy-efficient and can help to promote plant growth in your aquarium.
  11. Python No Spill Clean and Fill Aquarium Maintenance System – This system makes performing water changes


Overall, caring for Angelfish can be a rewarding experience for any fish enthusiast. These beautiful creatures require a bit of attention and care, but the effort is well worth it.

Through this ultimate care guide, we have covered everything you need to know to keep your Angelfish healthy and happy. From setting up the perfect tank environment to feeding and maintaining water quality, we have provided you with all the necessary information to ensure your Angelfish thrive.

Personally, I have found that caring for Angelfish has been a joyous and fulfilling experience. Seeing them grow and thrive under my care has been incredibly rewarding. I hope that this guide has provided you with the knowledge and confidence to care for your own Angelfish and experience the same joy that I have.

Remember, caring for Angelfish is a continuous learning process, and it’s important to always stay informed and up-to-date on the latest care techniques. By following the tips and guidelines in this guide, you can provide your Angelfish with the best possible care and enjoy their beauty and companionship for years to come.


As an angelfish owner, you may have some questions about their care. Here are some of the most frequently asked questions:

Q: Can angelfish live with other fish?

A: Yes, angelfish can live with other peaceful fish such as tetras, gouramis, and corydoras. However, they may become aggressive towards smaller fish or fish with long fins, so it’s important to choose tankmates carefully.

Q: How often should I feed my angelfish?

A: Angelfish should be fed twice a day, with only as much food as they can consume in 2-3 minutes. Overfeeding can lead to health problems and poor water quality in the tank.

Q: How often should I clean the tank?

A: It’s recommended to do a partial water change of 25% every two weeks, and a full tank cleaning every month. However, if you notice excessive algae growth or poor water quality, more frequent cleanings may be necessary.

Q: Can angelfish jump out of the tank?

A: Yes, angelfish are known to be jumpers, so it’s important to have a tight-fitting lid on the tank to prevent them from escaping.

Q: How can I tell if my angelfish is sick?

A: Signs of illness in angelfish include loss of appetite, lethargy, abnormal swimming behavior, and physical symptoms such as discoloration or visible parasites. If you notice any of these signs, it’s important to take action quickly to prevent the spread of illness to other fish in the tank.

Personally, I had an angelfish who developed fin rot due to poor water conditions. I learned the hard way how important it is to maintain a clean and healthy tank environment for these beautiful fish. By following proper care guidelines and monitoring your angelfish’s behavior and health, you can ensure that they live a long and happy life in your aquarium.

Reference: Wikipedia.


Hi there! My name is Jacob, and I'm the founder of this Pet people blog that talks all about aquarium and fishkeeping. I've been passionate about fish and aquatic life since I was a kid, and I've spent countless hours learning about different species, their habitats, and how to create the perfect environment for them to thrive in.

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