Ember Tetra Size 101: A Beginner’s Guide to Aquatic Success

Aquarists love Ember tetras for their vibrant coloration and peaceful nature. These small freshwater fish originate from the Amazon River basin in South America and are known for their striking orange-red bodies that resemble embers glowing in a fire. But what is the maximum ember tetra size in an aquarium?

Despite their small size, many aquarium hobbyists wonder how big ember tetras can get.

Typically, ember fish reach a maximum size of around 1 inch (2.5 cm) in length, making them a perfect choice for Nano and small aquarium setups.

Their small size allows them to thrive in various tank sizes, making them ideal for beginner and experienced aquarists. 

Ember Tetra

However, proper care and a suitable environment are crucial for these fish to reach their full size and potential. In this article, we will explore the factors contributing to ember tetras’ size and provide tips on ensuring their growth and well-being in your aquarium. 

How Big Do Ember Tetras Get in Home Tank?

Ember tetras are a small fish species native to the Araguaia River Basin in Brazil. In a home tank, these hyphessobrycon amandae can grow up to around 1 inch in size, making them perfect for Nano tanks and small community aquariums.

Due to their similar appearance and size, ember tetras are often compared to the popular neon tetra. Ember tetras tend to thrive in planted aquariums with live plants and driftwood, as they prefer a natural habitat with a dark substrate.

ember tetras

These fish are known for their beautiful red-orange coloration, adding hints of red to any community tank. They are schooling fish and do best when kept in a group of at least six individuals.

Ember fishes adapt to various water conditions but prefer slightly acidic water with good water quality. They have a diverse diet and can be fed multiple foods, including flakes, frozen foods such as brine shrimp and daphnia, and live or frozen baby shrimp.

Customer reviews often praise ember tetras for their peaceful nature and vibrant coloration, making them popular for community tanks with other small fish like Rasboras and dwarf shrimp.

Maximum Ember Tetra Size in Aquariums: Petite Powerhouses 

Ember Tetras, those fiery little jewels of the freshwater aquarium, are renowned for their vibrant orange hues and peaceful demeanor. But just how big do these miniature marvels get?

In captivity, Ember Tetras typically reach a maximum size of 0.8 to 1 inch (2-2.5 cm) in length. This makes them ideal inhabitants for Nano tanks and community setups with other similarly-sized, non-aggressive species.

Factors influencing Ember Tetras size: 

  • Genetics: Like any living organism, genetics play a role in determining the ultimate size of an individual Ember Tetra.
  • Diet: Healthy growth requires a balanced, nutritious diet rich in high-quality flakes, pellets, and occasional live or frozen foods. 
  • Water temperature and quality: Maintaining pristine water conditions with regular water changes ensures optimal health and growth potential.
  • Ember Tetra Tank size: While they don’t require vast spaces, a cramped environment might restrict their growth potential slightly. 

Remember: While size is a consideration, Ember Tetras’ personality and vibrant colors make them shine in any aquarium.

Ember Tetra Freshwater Fish Species Profile:

Ember tetras are a popular choice for small fish tanks, as they are considered a great community fish that can be kept in a school of their kind.

These shoaling fish are known for their vibrant flame-colored bodies that add a pop of color to any tropical fish aquarium. Ember tetras thrive in environments with soft to moderately hard water and can be kept with other peaceful fish, such as cardinal tetras and dwarf red gourami.

They do well on a diet of flake foods, live foods such as baby brine shrimp, and freeze-dry options. Plenty of hiding places will help these fish feel secure in their tank.

Ember tetras are active fish that enjoy swimming together in a school. They are also bottom-dwelling fish, so it is essential to provide dense plants and invertebrates for them to explore.

When setting up a heavily planted tank for ember tetras, paying attention to the water parameters is essential to ensure their health and well-being.

These adaptable small fish do best in a 10-gallon aquarium or larger, and they can be kept with other peaceful species like black neon tetras and dwarf red catfish. With proper care and a balanced diet of small meals, ember tetras can live a long and healthy life.

Ideal Ember Tetra Tank Size: Creating a Comfortable Home

When creating a comfortable home for a school of Ember Tetras, consider a 10-20 gallon aquarium with a dark substrate and background to mimic their natural South American biotope. These colorful fish tend to swim in shoals and do well with bottom-dwelling freshwater Nano fish like pencilfish.

Ember Tetras are easy to care for, making them an excellent choice for beginner fish keepers looking to add bold orange to their new tank. Females will deposit eggs that will hatch into healthy juvenile fish.

Consider using UPS Next Day Air with a live arrival guarantee to ensure your fish arrive safely. With a wide range of water parameters suitable for Ember Tetras, these freshwater nanofish from the lower Amazon Basin will thrive in a well-maintained aquarium.

Ember Tetra Diet and Feeding

Ember Tetras are omnivores, and their diet should consist of a variety of foods. They will readily accept flake, pellet, frozen, and live foods. A balanced diet for these small fish may include high-quality flake food, bloodworms, brine shrimp, and daphnia.

Feeding them small, frequent meals is vital to prevent overeating and ensure they receive proper nutrition. Offering a mix of foods to adult fish will help keep them healthy and vibrant.

When breeding, a diet high in protein is essential to encourage spawning. The eggs will hatch in 24-36 hours, and the fry becomes free-swimming in the bottom of the tank. It is crucial in fishkeeping to provide appropriate nutrition for both adult and juvenile fish to promote overall health and well-being.

Temperament and Tank Mates: (Recommended Tankmates)

They are known to be peaceful and non-aggressive fish, making them great tank mates for a variety of other community fish. They should be kept in schools of at least 6 to feel secure and showcase their vibrant colors.

To prevent conflicts, tank mates must be chosen from fish of similar temperament and size. Some recommended tank mates for Ember Tetras include larger fish such as Rasboras, danios, and small Corydoras catfish. 

These peaceful and active fish are ideal companions for the Ember Tetras. By selecting similar-sized tank mates, you can create a harmonious and balanced aquarium environment in which your Ember Tetras can thrive.

What are the Best tank mates for a Betta in a 6-gallon tank?

Due to size, a 6-gallon tank is best for a Betta alone. But if you really want tankmates, consider peaceful invertebrates like nerite snails or ghost shrimp (be prepared for some shrimp losses).

How big do ember tetra get?

How big does an ember tetra get? Ember tetras are tiny! They only reach about 0.8 inches (2 centimeters) long, making them perfect for small aquariums.

How many ember tetras are in a 20 gallon tank?

A 20-gallon tank comfortably houses 20-25 ember tetras. This number allows them to shoal freely and thrive while keeping the tank from becoming overcrowded.

Are ember tetras aggressive?

Ember tetras are peaceful fish that are well-suited for community tanks. They may briefly chase tankmates, but this is not aggression. Keeping them in a large enough school helps prevent any one fish from becoming dominant.

Are ember tetras beginner fish?

Yes, hyphessobrycon amandae are a great choice for beginner aquarists. They are peaceful, easy to care for, and thrive in well-maintained planted tanks.

Is 6 ember tetras enough?

No, six embers are on the low end. Ideally, aim for a school of 6-10 for these social fish. They feel braver and show better colors in a group.

Can I keep ember tetras in a 5 gallon?

While possible in a pinch, a 10 gallon tank is ideal for ember tetras. Their schooling behavior thrives with more space. Aim for a larger tank for a happy, healthy ember tetra shoal! For more info on ember tetra tank size, search online.


Keeping Ember Tetras can be a rewarding experience for both novice and experienced aquarium enthusiasts. By understanding their needs and providing the right environment, you’ll enjoy a vibrant display of color and activity in your tank. Remember, creating a thriving community starts with informed choices. So, research, prepare, and welcome these fiery little jewels into your aquatic world. Always keep in mind that the Ember Tetra size makes them ideal for smaller setups, but their personalities are anything but small!

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About Me

I am the founder of, a devoted wife and mother, and an avid fish enthusiast. My aim is to assist fellow fish lovers worldwide in understanding how to properly care for and breed their pet fish.

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