What Size Tank Do Your Freshwater Angelfish Need?

If you are considering purchasing angelfish, you must choose the right fish tank size.

That being said, putting angelfish in any fish tank is not a good idea. There may be certain aquariums that are unsuitable for these fish. So what is the best fish tank size for angelfish?

From our experience, a 10-20 gallon fish tank is a minimum size you should get for your angelfish.

This depends on some factors. For example, different types of angelfish have different-sized bodies.

This article will show you how to calculate the best fish tank size for your angelfish. Also, we will provide you with some more tips on keeping your angelfish healthy and happy.

How to Calculate Fish Tank Size for Your Angelfish?

There is a simple rule that you can use to calculate the appropriate tank size for your angelfish. For every inch of fish, you will need one gallon of water. 

Angelfish grow taller than they grow longer. Therefore this rule should be followed more by the height rather than the length. However, this rule intends that it does not consider the fish’s length.

Also, it does not consider the additional items you put in your aquaria, such as gravel, plants, and other decorations.

Therefore, to make things easier, we may add ten gallons for all the stuff that takes up space in your aquarium.

For example, if you choose a 3-inch tall angelfish, there will be 3 gallons for the 3-inch tall Angelfish and 10 gallons for everything else. In total, you’ll need a 13-gallon tank for three-inch angelfish.

Also, for two 3-inch angelfish, you’ll need a 6-gallon tank for the whole 6-inch fish and an additional 20 gallons for other things like plant, gravel, and ornaments. So to summarize, you’ll require a 26-litre aquarium for two angelfish.

Note: this is the minimum size requirement. A larger fish tank is always better for the fish’s health and well-being.

What is the Best Angelfish Tank Size?

Depending on the calculation we just did, the best tank size for angelfish should be able to hold at least 10-20 gallons of water. 

This is the minimum size that you should get for your angelfish. However, if you can go for larger tank size, don’t hesitate.

What Is The Ideal Size for Breeding?

A 20-gallon tank is required to breed a pair successfully. However, for optimal results, a 30-gallon tank is recommended. This size will give the parents and fry (baby fish) plenty of room to move around without stressing the fish.

If you keep the fish in a tank that is too small, you won’t receive good results. So, it’s critical to have a tank big enough for both of the fish.

Remember that you’ll want to add aquatic plants and possibly breeding slates or cones to the tank.

Here is a youtube guide on how to breed angelfish.

Why Larger Tank Is Better?

1. Angelfish Will Get Bigger

When you give your fish a larger tank, they will have a large place to grow. On the other hand, if you start with a small tank, it won’t be long before your fish have outgrown their home.

So, get a smaller tank if you want fish that will stay small. Get a larger tank if you want fish that will grow to their full potential.

2. Larger Tanks Combat Aggression

Male angelfish are territorial and will become aggressive when other fish infringe on their space.

With a larger tank, the fish will have more space, and they won’t feel as though their territory is being threatened. This will lead to a happier and healthier fish.

So even if there are size recommendations, the larger they are, the better.

3. Angelfish Do Better With Larger Numbers of Their Kind

The angelfish, like all fish, prefer to be in a group. They are social fish that like being with their kind. This is why having a larger tank is essential if you want to keep more than one angelfish.

Because at the same time, they are considered semi-aggressive fish, so the more space they have, the less likely they are to fight with each other.

4. Angelfish Need a Lot of Swimming Room

Angelfish are not content to just sit in one spot all day long. They need plenty of room to swim around and explore.

In a small tank, they will quickly become bored and stressed. This can lead to a lot of health problems, including a shortened lifespan.

5. Angelfish Need Large Tanks for Optimal Water Quality

Water quality is extremely important for the health of your angelfish. Ammonianitrites, and nitrates must be carefully monitored and kept at safe levels.

The larger the tank, the easier it will be to maintain good water quality. This is because more water dilutes any toxins that may build up.

In a small tank, even a tiny spike in ammonia levels can be deadly to your fish.

6. Large Tanks are More Stable

A large tank is much more stable than a small one, meaning it is less susceptible to changes in temperature and pH levels.

This is important because sudden changes can be deadly to your fish. A large tank will have more water to buffer any changes.

7. You Can Keep More Plants & Hiding Places

Angelfish love plants. They use plants in the wild to hide from predators and lay their eggs.

Plants also help to oxygenate the water and provide a place for beneficial bacteria to grow. Furthermore, live plants will help keep the ammonia levels in your tank low. Therefore, the more plants you have, the better.

Best Angelfish Tank Size
Using Live Plants in Your Home Aquarium by thesprucepets

FAQS

What Is the Ideal Size for One Angelfish?

A single angelfish will require at least 10 gallons of space. However, a 10-gallon tank would be insufficient if you wish to add additional fish.

Also, consider that buying a bigger aquarium is strongly advised if you want the fish to be content and healthy.

Anyways, it’s ultimately up to you how you want to tackle things, but keep in mind that a bigger aquarium will almost always be preferable.

What Is the Ideal Size for Two Angelfish?

The appropriate tank size for two angelfish is a 20-gallon tank unless you won’t add any additional fish.

If you intend to buy two angelfish, it will be preferable to purchase one male angelfish and one female angelfish.

However, consider buying a bigger aquarium if you want them to be more at ease. It would be better to advocate keeping two angelfish in a 29- or 30-gallon aquarium.

This method would make it simpler to have enough area for aquatic plants and other important things that enhance the aquarium’s naturalness.

What Is the Ideal Size for Four Angelfish?

Technically, you can keep four angelfish in a 40-gallon fish tank. However, this will not be near the ideal size.

There are many elements to consider when keeping two pairs of angelfish; the most significant is gender. Male angelfish don’t get along, implying that they will fight.

Male angelfish will continue to fight if you put them in the same tank. The fish can hurt one other, and it may develop into a serious problem if you don’t handle it correctly.

A 55-gallon fish tank may be sufficient, but you can go bigger if you want to. A 70-gallon aquarium will be better.

Can Angelfish Live in a Bowl?

Angelfish do not thrive in fish bowls. The majority of fishbowls will be too cramped for the angels.

As said above, a minimum of 10 gallons is required for a single angelfish. Most fishbowls will provide only one gallon or a half gallons of space.

Another factor to think about is the form of fishbowls. The angelfish would not enjoy these shapes since they have tall bodies.

Fishbowl
Fish bowel by doodlewash

Last Words

Angelfish are beautiful fish that make a great addition to any aquarium. They are relatively easy to care for, but there are some things you need to know before you get started.

The most important thing to remember is that angelfish need a large tank. A minimum of 10 gallons is recommended, but the larger, the better.

We hope this article has been helpful and informative. If you have any questions or comments, please feel free to leave them below.