Are Ember Tetras Hardy? Care Guide For Hardy Fish

Ember Tetras are beautiful fish that many people enjoy keeping in their aquarium. However, they are not as hardy as other tetras and can be difficult to keep alive if you don’t know what you’re doing. One of the most common questions we get asked about Ember Tetras is if they are hardy fish.

Yes, ember tetras are hardy fish. Many factors make tetras hardy, but some things can affect their health and cause them to die prematurely.

One major factor that makes Ember Tetras hardy is their ability to adapt well if water conditions are poor. They are very resilient fish which is why so many people enjoy keeping them. However whenHowever, when it comes to other factors that affect their health, there are a few things you need to know about.

In this post, we’ll talk about the things that make them harder than most species of tetra. Hence, you can give your Ember Tetra the best chance of living a long healthy life!

Read on!

Are Ember Tetras Hardy?

Yes, Ember Tetras are hardy fish that can adapt to a wide range of water parameters. They are peaceful schooling fish that live in tropical regions of South America. You can keep them with other non-aggressive species and will readily eat any food you give them.

Ember Tetras are fairly hardy fish, but they can still fall ill or suffer poor water quality. When this happens, you need to know what causes it to prevent a repeat occurrence!

What Makes Ember Tetras Hardy?

Ember Tetra’s adaptability is the main reason why they are one of the hardiest aquarium fish. They have been known to adapt and thrive in a wide range of water parameters.

One of the main reasons why Ember tetra is hardy is because it comes from soft and acidic water soft and acidic water.

This kind of water will not have a lot of chemicals that can affect the health of your fish. So, it means you don’t need to do many things to keep them healthy.

However, this does not mean that they are invincible from disease or illness. The fish can adapt to different water conditions aside from their natural habitat in which Ember tetras thrive well.

For example, you might have noticed that Ember tetras are doing well in your tank without any problem even if it is not their natural habitat as long as they feel comfortable and safe from predators.

Factors That Affect The Health Of Ember Tetras

Ember tetra is hardy because of its native water conditions. However, it can also have the same hardiness in your tank if you take good care of them and ensure that they are compatible with their environment. Below are some factors that affect the health of Ember tetras:

Poor Water Quality

If there is one thing to remember when keeping fish, it is always maintaining good water quality. A good filter, regular water change, and not overfeeding can help achieve this goal.


Ember tetras are always stressed out when other fish are chasing them or if their habitat is disrupted in any way. You have to make sure that your tankmates cannot chase them. Or else, Ember tetra will become stressed out and get sick easily.

Incompatible Tankmates

If you want to make Ember tetras healthy, it is best not to combine them with aggressive or huge fish. Large catfish have a voracious appetite, which means that they will eat anything, including your small Ember tetra. Even angelfish, which are known for being peaceful, can still eat Ember tetra.

Poor Genetics

Ember Tetras are not that hardy in genetics. So, you have to make sure that their parents were also healthy and free from genetic defects before buying them. Also, it would help if you only buy fish that don’t have any physical deformities or other abnormalities like missing scales and activity.

Temperature Fluctuation

Ember tetras cannot stand sudden temperature changes. So, it is best to keep them in a pretty constant environment that ranges from 70-75 degrees Fahrenheit. Overheating your tank can cause Ember Tetra, ich which will make this fish very sick once contracted. It is also important to make sure that you do not expose their tank to sudden changes in temperature.


You have to avoid overfeeding Ember tetras since they will only get sick if you do this. For example, an adult fish can eat up to five bloodworms which are small and nutritious foods for Ember Tetra every day. If you want to give them more food, you have to make sure that you prepare it in advance and store it first.

Sudden Water Change

If you filter your tank properly, sudden water change is very harmful to Ember tetras. If this happens, they are stress or sick since this will disrupt the balance between their environment and their body’s handling.


Ember tetras do not like being crowded. Overc rowding can cause them to get sick if it becomes too overwhelming for the fish. For example, they need at least three gallons of water per one Ember Tetra, so you must ensure that your tank size is adequate for all these fish.

Water Current

Ember tetras do not like strong water currents. They will only become stressed out or get sick if there is too much of it in your tank. If you want to keep them healthy, then make sure that the flow rate is gentle enough for these fish to adapt well without any problem.

Low Level Of Oxygen

If the oxygen level in your tank is low, then Ember tetras will not be able to breathe well, and they can get sick. So you have to make sure that there are enough plants or other things inside your aquarium that will absorb carbon dioxide so a healthy amount of oxygen can circulate through their habitat.


In conclusion, Ember tetras are only hardy if you take good care of them. You have to make sure that they get the proper amount of food, oxygen, and water so their environment is balanced with what they can handle. If you want your Ember Tetra ich disease-free, then it will be best not to combine them with other aggressive fish or those who are very large. You should also avoid placing them near a window or in an area with constant activity since this will only stress out your Ember Tetra.

If you have more questions about Ember tetra health, you can call your local aquarium store or send us a message. We are more than happy to help!

Good Luck!!!

Happy Fishkeeping!!!

Scroll to Top