Ember Tetra and Betta: Harmonious Tank Mates

Many beautiful betta fishes and other fishes are swimming in the beautiful tank. Text on the image: 'Ember tetras and Bettas'

Ember tetras and betta fish are two popular choices for freshwater aquarium enthusiasts. They bring unique charm and beauty to the tank. 

Bettas are known for their stunning colors and majestic fins. Ember tetras captivate with their vibrant red-orange hues and playful demeanor. 

Despite their differences in size and temperament, these two species can coexist harmoniously under the right conditions.

In this guide, I’ll explore the compatibility between ember tetras and bettas, offering insights into their care requirements, tank setup, and tips for ensuring a peaceful and thriving community tank.

Here’s a comparison to help you decide if they’re a good fit for your aquarium:

Overview of Bettas:

The betta fish is a popular freshwater fish known for its vibrant colors and flowing fins. They are also known as the Siamese fighting fish.

Betta fish are famous for their aggressive behavior towards other male bettas.

This is why they are often called “fighting fish.” They are peaceful towards other fish species if they are appropriately introduced and the tank is large enough.

Bettas prefer smaller tanks (minimum 5 gallons) with plenty of hiding places like plants and decorations.

They thrive in warmer water,75-82°F, with a slightly acidic pH (6.5-8).

Bettas can be kept with some peaceful fish like tetras. It’s essential to choose suitable species and introduce them carefully.

Avoid fish with long fins or bright colors. These can trigger the betta’s aggression.

Overview of Ember Tetra

Hyphessobrycon amandae (Ember Tetra) is a small and colorful freshwater fish. It is native to the Araguaia River basin in Brazil.

It is a popular aquarium fish due to its vibrant orange and red colouration, peaceful nature, and hardiness.

Ember tetras are small fish. They reach a maximum length of about 2 inches.

You can keep it in a small aquarium. They are open about their water conditions.

They prefer water temperatures between 72-78°F and a pH of 6.5 to 7.5.

Ember tetras are omnivores. They eat various foods, including flakes, pellets, and live food. They need a diet that is high in protein.

Can Ember Tetra Fish Live with Bettas?

Yes, some types of Tetra fish can live with Bettas.  It depends on the type of Tetra and the temperament of the Betta.

Some Tetras are peaceful fish that are a good fit for Bettas. Some are more aggressive and can fin nip or bully Bettas.

Ember tetras can live with bettas, but it’s not without risks. Bettas are known for their territoriality.

At the same time, ember tetras are generally peaceful fish. They can still be seen as competition by some bettas.

A suitable tank will give both fish more space to avoid each other and establish their own territories.

The minimum size of the tank should be 5-10 gallons. But 15 gallons or more is ideal.

Plenty of live plants and hiding places should be placed in the tanks. It will help the ember tetras feel secure and reduce their chances of being harassed by the betta.

Some bettas are more aggressive than others. If you’re considering housing them with ember tetras, choosing a betta with a history of being peaceful with other fish is best.

Even if you take all of these precautions, there’s still a chance that the betta will not tolerate the ember tetras.

It’s essential to be prepared to separate the fish when;

  • The betta is chasing or nipping at the tetras.
  • The tetras are hiding all the time.
  • The tetras’ fins are clamped or damaged.

Overall, It depends! With careful planning and the suitable species, bettas and tetras coexist peacefully.


Water conditions:

Bettas prefer warmer water temperatures (75-82°F) than Ember tetras (72-78°F).

Additionally, bettas thrive in still or slow-moving water, while Ember tetras prefer gentle to moderate water flow.

Finding a water temperature and flow suitable for both fish can be challenging.

Diet and Nutrition:

Bettas are carnivores. They need a diet of meaty foods, such as brine shrimp, bloodworms, and pellets.

Ember tetras are omnivores and eat various foods, including flakes, pellets, and algae.

It can be challenging to ensure that both fish get the nutrition they need if they are kept together.


Fin Nipping:

As mentioned above, bettas are known for nipping at the fins of other fish. 

It can be stressful for Ember tetras and lead to infection if the wounds are not cared for properly.

Ember Tetras are peaceful fish. They will not nip your Betta. However, any fish can nip fins if they are stressed or overcrowded.

To avoid this, ensure your tank is large enough for all your fish and plenty of hiding places.


In some cases, bettas may become aggressive towards Ember tetras. They can kill them.

It is more likely to happen in small tanks. The reason is that there must be more hiding places for the tetras.

Competition for Food and Resources:

Bettas can be competitive eaters. They may outcompete Ember tetras for food. It can lead to malnutrition for the tetras.

What Fish Can Ember Tetras Live with?

Ember tetras are peaceful fish that can live pleasantly with various other small, non-aggressive species in a community aquarium. Some suitable tank mates for ember tetras include:

  • Neon Tetras
  • Harlequin Rasboras
  • Cherry Barbs
  • Corydoras catfish
  • Kuhli loaches
  • Otocinclus catfish
  • Shrimp

What Fish Can Live with Bettas?

Bettas can live with various other fish, but it is important to choose fish that are similar in size and temperament. Some good tank mates for Bettas include:

  • Mollies 
  • Neon Tetras
  • Harlequin Rasboras
  • Corydoras catfish
  • Kuhli loaches
  • Otocinclus catfish
  • Shrimp

How many Ember Tetras can I keep in a 10-gallon tank with a Betta?

A 5-gallon tank is too small for Ember Tetras and a Betta. Ember Tetras should be kept in groups of 6 or more.

They need a minimum tank size of 10 gallons. A Betta also needs a minimum tank size of 5 gallons.

So you need a tank of at least 15 gallons to house both fish.

You can keep a group of 6 Ember Tetras in a 10-gallon tank with a Betta. It is essential to monitor the fish closely for signs of aggression.

Remove the Ember Tetras or the Betta from the tank if you see any fin-nipping or other aggressive behavior.

Introducing a Betta to an Ember Tetra

The best way to introduce a Betta to an Ember Tetra is to do it slowly and gradually. First, acclimate the new fish to the water in your tank.

Then, float the bag that the new fish came in in your tank for about 30 minutes.

It will allow the water temperature in the bag to adjust to the temperature in your tank.

After 30 minutes, open the bag and let a small amount of water from your tank into the bag. Do this for about 10 minutes.

Then, gently net the new fish and release it into your tank. Watch the fish closely for any signs of aggression.

Steps for Housing Ember Tetras and Bettas Together

If you decide to house Ember tetras and bettas together, it is essential to take the following steps to cut the risks.

Use a Large Tank:

A large tank will give both fish more space to swim and hide from each other. A 10-gallon tank is the least size for housing these two fish together. A 15-gallon tank or larger is ideal.

Provide Plenty of Hiding Places:

A planted tank is a great way to reduce stress and aggression in your fish. Include plenty of plants, rocks, and driftwood in the tank.

It will provide hiding places for the Ember tetras. Plants provide hiding places for your fish.

They also help to improve the water quality in your tank. When choosing plants for your tank, ensure they are compatible with Bettas and Ember Tetras.

Monitor the Fish Closely:

Monitor the fish to ensure the bettas are not aggressive towards the tetras. If you see any signs of aggression, separate the fish.

Feed the Fish Separately:

To minimize competition for food, try to feed the fish at opposite ends of the tank.


Housing Ember tetras and bettas together can be challenging.

It is possible to do so successfully if you take the necessary precautions.

The tips above can help both fish thrive in a shared aquarium.

While housing ember tetras and bettas together in the same tank can be a rewarding experience.

It requires careful consideration and preparation to ensure the well-being of both species.

Aquarists can create a harmonious community tank where these colorful freshwater fish thrive by understanding their compatibility, providing suitable tank conditions, and monitoring their interactions.

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