How Many Angelfish Should Be Kept Together?

Keeping angelfish together is a popular topic amongst fish keepers.

While many people believe that larger groups of angels are better, others maintain that keeping less than six angelfish will lead to a healthier and happier aquarium.

So, what’s the right answer?

From our experience, we found that a group of at least five is ideal. This number allows the fish to form a hierarchy and establish their place in the “pecking order.”

Of course, the more angels you have, the more of a challenge it is to keep the aquarium clean and free of algae. But, with proper care, a large group of angels can be a beautiful and peaceful addition to your home.

This blog post will explore how many angels should be kept together, the benefits of keeping a group, and the challenges of caring for a large group.

How Many Angelfish Should Be Kept Together?

The best way to keep angelfish is to keep them in groups of 5 or 6 at the absolute minimum. This gives them the numbers they need to feel safe and secure while also providing an ample opportunity to socialize.

However, if you are just starting out with keeping angelfish, you may want to start with just a pair. This will allow you to know your fish and their personalities before adding more.

Are Angelfish Schooling Fish?

Angelfish are not schooling fish. Although these species love to be in the company of their own kind, they do not school like tetras or other similar fish.

Each angelfish has its own unique personality, and they will often interact with one another in different ways.

Why Is It Essential to Keep Angelfish Together?

Keeping angelfish in a group will help to reduce aggression and allow them to live peacefully together.

If separated, the dominant fish may attack and kill the weaker fish. This can also lead to stress and illness in the weaker fish.

It is therefore essential to keep angelfish together in a group. This will not only make them happier, but it will also keep them safe.

Minimum and Maximum Tank Size for Keeping Angelfish in a Group

The minimum tank size for angelfish is 20 gallons. Many people follow the rule of 1 gallon per inch of fish, which implies that an angelfish would only need 6 gallons of water. This rule does not consider the other needs of the fish, such as space to swim, places to hide, and room to grow.

However, be cautious not to add too many fish since this will cause your aquarium to get crowded, making your fish unhappy.

Is It Suitable to Keep Many Angelfish Together?

If you have a very large tank, you could probably add quite a few more without any problems. But if your tank is on the small side, you should stick to just a couple.

Just be sure to introduce the new fish slowly and monitor their behavior to make sure they get along. 

Can I Keep Angelfish Solely in a Tank?

Angelfish can be kept in a tank by themselves, but they will not do as well as if they had companions. 

If you choose to keep angelfish in a tank, be sure to provide plenty of decorations and plants to give them something to explore and make sure the tank is large enough to have plenty of room to swim.

What Happens if Angelfish Solely Lives in a Tank?

If angelfish solely live in a tank, some general events will take place, including:

1. More Aggression Results

An angelfish that does not have a group to socialize with will often become more aggressive. This is because they will not have an outlet to release their excess energy and will become frustrated. 

2. Lacks Mating Partner

Imagine a life without someone to love, and you get the gist of how angelfish feel when they solely live in a tank.

Angelfish are a type of fish that needs mating partners to be happy. When they don’t have one, their health (both physically and mentally) declines.

3. No Social Interaction

This one is pretty self-explanatory. When angelfish don’t have any companions, they don’t have anyone to socialize with. 

This can lead to them becoming depressed and stressed, leading to health problems.

In short, it’s not a good idea to keep angelfish in a tank by themselves. 

Things to Manage While Keeping Angelfish Together

When you have an angelfish tank, you must take care of the fish and manage the tank properly. Here are some things to keep in mind:

1. Water Temperature

The ideal water temperature for an angelfish is between 75 and 82 degrees Fahrenheit. 

However, they can tolerate water temperatures as low as 72 degrees and as high as 86 degrees.

So, if the water in your area is within this range, you should be fine.

Here is a youtube guide on how to care for your angelfish.

2. pH Level & Water Hardness

When keeping angelfish together, an essential thing to remember is the water’s hardness.

Angelfish are very sensitive to changes in water hardness. Therefore, you must keep an eye on your levels and make sure they stay consistent. 

If you detect any variances, take immediate measures to correct them. 

Generally, you should maintain a pH between 6.8 and 7.8, with a hardness between 3° and 8° dKH (54 to 145 ppm).

3. Lighting

One of the most important things to remember is that different fish need different lighting levels.

An angelfish, for example, requires a lot of light and should not be kept in an aquarium with low lighting. 

So, make sure to provide your angelfish with an aquarium with 8-12 hours of light per day to meet their needs. If you don’t, they may become stressed and even die.

4. Plants

The angelfish enjoy the addition of greenery to their aquarium. These plants offer the perfect place to hide and play.

For example, female angelfish use these plants to hide in and as a place to lay their eggs.

Be sure to research the types of plants that will work best in an aquarium setup. Some good plants for an angelfish tank include Anubias barteri, java ferns, and Cryptocoryne wendtii.

5. Substrates

Angelfish inhabit marshes, swamps, and muddy regions of the Amazon River basin with sandy substrates. Therefore, you can utilize sand to create a natural stream base for Angelfish in your aquarium.

If you are unsure about cleaning sand regularly, you can use gravels of small to medium size.

6. Neat and Clean Aquarium Habitat

The most essential aspect of Angelfish tank maintenance is a clean and tidy aquarium. To maintain a clean tank, you should do a minimum of 20% to 25% water changes each week.

Also, remove all remaining food, fish excretion, and algae buildup on time since they produce toxins in the water that harms fish health.

Can I Select Some Tank Mates for Angelfish?

You can add tank mates for Angelfish in an aquarium. However, finding suitable partners for them isn’t simple, though it isn’t difficult either.

It’s critical to carefully examine the behavioral patterns of other species while keeping them with Angelfish. Otherwise, it might lead to fights and territorial aggression, which can cause serious injuries.

Some compatible species include:

  • Mollies
  • Plecos
  • Corydoras
  • Rainbowfish
  • Dwarf Cichlid
  • Bolivian Ram
  • Small Catfish
  • Dwarf Gouramis
  • Pictus
  • Discus

Which Fish to Avoid in Angelfish Aquarium?

Although Angelfish can get along with several fish species, some might prove to be incompatible tank mates. Here is a list of fish that you should avoid keeping with Angelfish:

  • Oscars
  • Convicts
  • Barbs
  • African and South American cichlids


Can I Have Just One Angelfish?

You can have just one angelfish. Although it’s not the best approach, it can work if you take the time to understand your fish’s individual personality.

You will need to provide them with plenty of hiding places and places to explore.

Can I Keep 2 Male Angelfish Together?

When angelfish are small, it does not make a difference whether they are male or female.

However, when they mature naturally and become adults, there may be a lot of fights between them. 

And if there aren’t any females laying eggs, the tension among them will increase, and they’ll be aggressive.

Can I Keep 3 Angelfish Together?

Three angels in a tank is probably the worst number. You’ve got a 75% chance of getting a pair, and the odd fish out will get pummeled. For this reason, it is better to get 5 or more.

How Many Angelfish per Gallon?

You can’t keep an angelfish in a single gallon of water. An individual angelfish needs 20 gallons of tank space.

How Many Angelfish Can I Keep Together in a 10-Gallon Water Tank?

As a general rule, you can keep one angelfish in a 10-gallon tank.  However, it’s not ideal, and the fish may become stressed. 

How Many Angelfish in a 40 Gallon Tank?

A 40-gallon tank can only house 2-4 angelfish (ideally 2 pairs). Angelfish reach a maximum length of 6 inches on average. So, a 40-gallon tank will provide each angelfish with about 20 gallons of space.

Can Four Angelfish Live Together?

You can keep four angelfish together if they are all the same size in a 29-gallon community aquarium.

What Size Tank Do I Need for 3-Inch Angelfish?

For a 3-inch angelfish, you’ll need a 13-gallon tank. Since the 3-inch angel will need 3 gallons of water and 10 gallons for the plants and other decorations.

Can You Mix Different Angelfish?

It’s fine to combine different sorts of angelfish if the water conditions and tank parameters are comparable. However, you should avoid the aggressive varieties.

Can Angelfish Live in a 5-Gallon Tank?

An angelfish’s size precludes it from fitting in even a 5-gallon tank. They will outgrow such a small space very quickly and will not be happy living in cramped quarters.

What Are the Signs of a Healthy Angelfish?

Healthy angelfish are alert and active, with clear eyes and fins. Their color should be bright, and they should have a healthy appetite.

If you notice any changes in your angelfish’s appearance or behavior, take them to a vet for a check-up.

What Do Angelfish Eat?

Angelfish are omnivores, which means that they will eat a variety of both plant and animal matter.

In the wild, their diet consists of insects, small crustaceans, and algae. In captivity, you can feed them a variety of foods, including pellets, flakes, live food, and frozen food.

How Often Should I Feed My Angelfish?

You should feed your angelfish 2-3 times a day, giving them as much food as they can consume in 2 minutes. It’s important not to overfeed them, as this can lead to health problems.

What Are the Common Health Problems of Angelfish?

Angelfish are prone to a variety of health problems, including parasites, bacterial infections, and fungal infections. Also, some angelfish are born with genetic defects that can cause health problems.

Last Words

If you’re thinking of keeping angelfish, make sure you have a suitable aquarium and the appropriate tank mates. 

Your angelfish will thrive and live a long and happy life with the proper care.

We hope you found this article helpful. 

If you have any questions, please feel free to ask in the comments section below.