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How Many Angelfish in A 55 Gallon Tank

Adding angelfish to your aquarium is a wonderful choice because they are happy living creatures and will add uniqueness to your fish tank.

If you have a 55-gallon tank and are looking to add angelfish but don’t know the number, then this article is for you.

In this article, we are going to cover some reliable information about angelfish and how many of them you can put in a 55-gallon tank.


What are angelfish?


Angelfish are popular within saltwater aquariums. They are also known as freshwater cichlids and add more to the beauty of aquariums because of their vibrant colors and display.

Being a Pterophyllum species, theybelong to Amazon Basin, Orinoco Basin, and other rivers found in Tropical South America. They are awesome community fish and like to be more active during the day. The unique thing about them is that they have a small mouth and long dorsal and anal fins.


How many angelfish can you put in a 55-gallon tank?

A group of angelfish

Brief answer: The short answer is that you can put around 5-8 angelfish in a 55-gallon tank (no bigger than 3 inches long). Because they are quite small and require very little space. In case of overcrowding, your aquarium will result in a territorial fight and also cause a lack of swimming space.

You must consider other aspects of the fish's care and behavior when determining how many of a particular species you can keep in a tank.


What care requirements you should consider while adding angelfish to a 55-gallon tank?

Proper care of your aquarium’s pet must be your top priority and one should take all the necessary steps to make their fish happy in the tank.

There are various things you must take into account when it comes to properly care for your angelfish.

  • Being a freshwater fish, angelfish like clean water. So, it is required to change your tank’s water frequently.
  • The salinity and pH value might be an issue because the angel fish is native to freshwater. So, it is important to review the water conditions to choose which ones are ideal for your angelfish.
  • To ensure that your fish are always healthy and in good condition, there are other water parameters such as ammonia, nitrite, and carbon dioxide levels, which will also be necessary to test regularly.
  • Also, angelfish can grow up to 10 inches, so make sure that your tank is big enough so that they won't be cramped or may even cause harm to each other once they become fully grown.


What fish you can keep with angelfish in a 55 Gallon tank?

Angelfish tank mates

Angelfish are good community fish and can not be kept alone. The following are the suitable tank mates for angelfish.

  • Tetras
  • Rasboras
  • Platies
  • Mollies
  • Gouramis
  • Corydoras
  • Peaceful barbs
  • Catfish (medium size)


What is the average size of angelfish?

Since angelfish are the type of fish who likes swimming freely for proper growth. The average size of angelfish is about 5 to 6 inches long, but when they are fully mature, the size may be gone to 8 to 10 inches.


Is it good to keep only one angelfish in a 55-gallon tank?

The short answer is yes. You can put only one angelfish if angelfish is very aggressive. But make sure that your aquarium is fully decorated with plants and colorful stones, so angelfish don’t get bored.


What is the average lifespan of angelfish?

Angelfish have an average lifespan of about 10 years, but one should provide the proper care to keep them growing and alive.


How to set up a 55-gallon tank for angelfish?

Angelfish in a 55-gallon tank

To set up a tank for angelfish, you will need a tank, a heater, a filter, and some gravel. You will also need to provide some decorations for your angelfish to hide in, such as plants, rocks, and driftwood.

You’ll need to provide a strong filter to keep the water clean and healthy for your angelfish. Then put a heater in the tank, to about 80℉. Finally, you will need to add some water and test the pH and hardness levels to make sure they are suitable for angelfish. Once your tank is set up, you can add your angel fish to your tank.


What different foods can angelfish eat?

Angelfish normally eat algae and other small aquatic plants and detritus. They have a varied diet but will generally eat anything they can find.

They are quick to eat any foods that are not native, including aquarium plant species. In the wild, they are opportunistic feeders, and readily consume whatever anyone else in the tank has left.

This is one of the reasons why some people feel that angelfish do well in community tanks, as they are more dedicated to feeding than most other fish.



By the end of this article, we get familiar with the angelfish and the quantity of them you can put in a 55-gallon tank. We also provide you with information about the considerations you must follow to keep your angelfish happy in the aquariums.

The next thing in this article we talked about is how you can set your 55-gallon tank before adding angelfish to the aquariums.

After all the above discussion, we come to the point that a 55-gallon tank is a good size tank and can be a good fit for 5-6 angelfish for beginners’ aquarists to care for them properly.

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