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BuckTooth Tetra

Do you want to learn more about the BuckTooth Tetra? This fish is a popular choice for aquariums, and there are a few reasons why. 

They are hardy fish that can tolerate a variety of water conditions, and they are also very active. 

In this blog post, we will discuss everything you need to know about Bucktooth Tetras! This includes their care requirements, diet, habitat, and more.


Scientific NameExodon paradoxus
Common NamesBucktooth Tetra
OriginAmazon River Basin and Guyana areas.
AggressionPeaceful fish
Minimum Tank Size55 gallons of water for a school of 12
SizeIt Grows up to 4-5 inches long.
Life SpanThey can live for ten years.
pH6.2 to 7.4.
Temperature72-82 degrees Fahrenheit 
Care LevelDifficult
BuckTooth Tetra Characteristics

BuckTooth Tetra Origins

The bucktooth tetra (Exodon paradoxus) is a freshwater fish native to Guyana and Amazon Basins.

It was initially released to the aquarium trade in 1932, and it has since become a popular species among aquarists.

What Are the Features of BuckTooth Tetra?

1. Appearance & Colors

The bucktooth tetra is very similar to other tetras, being small and torpedo-shaped with brightly colored fins.

The primary body color is silver, but it is also flecked with yellow, green, and red.

There are two large patches on the body – one in the middle and one near the base of the tail fin.

The flippers are translucent with a yellow tinge, and the dorsal, pectoral and anal fins are all dotted with red and orange. However, on the trail, a few specks of a brighter yellow provide a dash of color!

Despite their aggressive moniker, these freshwater fish do not have protruding teeth. The teeth, on the other hand, are pretty distinct.

The teeth are pointy and keen to assist scale-eating behavior, like those of sharks and other fish that eat scales.

2. Length

The average length of a bucktooth tetra in captivity is four to five inches. However, they can grow up to six inches long in the wild!

3. Lifespan

Bucktooth tetras are freshwater fish that can live for ten years or more with the proper care.

In the wild, their lifespan is typically 5-8 years. However, with proper tank maintenance and care in captivity, they can easily live ten years or longer.

Is BuckTooth Tetra Hardy?

Bucktooth tetras are pretty resilient, but they can be harmed by substantial temperature or pH changes.

Despite their hardiness, providing them with a stable environment is essential. That means regular water changes and close attention to water quality.

BuckTooth Tetra Availability

While they are not as popular as other peaceful tetra species, they are still readily available in many aquarium stores.

When choosing your bucktooth tetras, look for healthy fish with bright colors and avoid any fish that seem lethargic or have cloudy eyes.

How to Care for BuckTooth Tetra?

1. Tank Size

Bucktooth tetras are very energetic and require a lot of room to swim around and explore. They are also shoaling fish, so you must maintain a large group together to stop your fish from feeling stressed and lonely.

As a result, they need a larger tank to give them the appropriate setting. We recommend a tank of at least 55 gallons for a group of 12 bucktooth tetras.

2. Temperature

Water temperature should be consistent to avoid stressing the fish and affecting their immune response.

The ideal water temperature for Bucktooth Tetra is 72–82-degree Fahrenheit. In this range, the fish are active, and their metabolism is working at an optimum rate.

3. PH Level

It is best to aim for slightly acidic water when keeping this fish. So, the pH level of BuckTooth Tetra’s water should be around 5.5 to 7.5.

4. Lighting

Lighting is crucial for your fish’s development. It will not only help your live plants grow, but it will also brighten the hues of your fish.

For most planted aquariums,6500k-7000k lights are typically enough. However, you may need a more powerful light depending on your plants’ lighting demands.

5. Filters

One of the most important things you can do to ensure the health and happiness of your Bucktooth Tetras is to choose the right filter for their tank.

A high-quality filter is a must, as these fish produce a considerable amount of waste that needs to be removed from the water. Failure to do so can lead to poor water quality and unhealthy fish.

There are a variety of filters on the market, so it’s essential to choose one that is specifically designed for use with Bucktooth Tetras.

Canister filters are a good option, as they provide powerful filtration while being relatively quiet.

Hang-on-back filters are also a good choice, and many come with adjustable flow rates to give you more control over the filtration level.

No matter which type of filter you choose, clean it regularly to maintain optimum water quality for your Bucktooth Tetras.

6. Tank Decoration

Despite its tiny size, the bucktooth tetra is a difficult fish to maintain due to its combative nature.

These fish dwell in close quarters with other species in the wild, and they have been observed attacking and eating smaller fish.

As a result, aquarists must provide plenty of space and hiding places for their bucktooth tetras, especially if keeping them in groups.

Choosing decorations like driftwood, stones, and artificial caves is best because they are not fond of floating plants. This will also help to create a more exciting and visually appealing aquarium.

BuckTooth Tetra Diet

Bucktooth Tetras are predators and eat just about anything they can get their teeth into.

They often feast on other fish in the wild, so it’s essential to give them a diet that includes plenty of meaty foods.

Some good options for their diet include:

Mussels, Crustaceans, GrubsMollusks, Other fish scales, and Lance fish.

Just make sure that the majority of their diet is meat-based to keep them healthy and happy.

BuckTooth Tetra Compatibility

If you’re thinking of keeping bucktooth tetras, it’s essential to know that they are best kept in a single-species tank.

Their aggressive nature can easily lead to them taking down and killing the other fish.

So, if you’re looking to keep these fish, it’s best to do so in a separate tank from any other fish. That way, you can avoid any potential disasters!

BuckTooth Tetra can be kept with the following fish:

  • Loricariids
  • Loaches
  • Larger characins like Anostomus

BuckTooth Tetra Gender Difference

Unfortunately, it’s difficult to distinguish between male and female bucktooth tetras because they don’t show any sexual dimorphism. Males, on the other hand, are generally more energetic than females.

BuckTooth Tetra Breeding

Bucktooth Tetra breeding is not an easy mission since these fish are not easy to sex, and will clash with each others.

The only way to breed them is to keep a large school of Bucktooth Tetras, both males, and females. Breeding will happen someday if you wait long enough.

You must be prepared to remove the eggs as soon as possible since the parents will eat them.

This problem may be overcome by arranging the aquarium properly so that long and narrow gaps are available. This approach will help the fry to escape being eaten.

Possible Diseases and Prevention

While there are no specific health concerns associated with bucktooth tetra, they are susceptible to the same diseases and illnesses that affect other aquatic species.

These include bacterial infections, parasites, and fin rot. The good news is that you can prevent the most severe health concerns.

To prevent these diseases, it’s essential to maintain clean and healthy water conditions in the aquarium. Regular water changes are a must to vacuum the gravel and clean the filter.

It’s also important to quarantine new fish before adding them to your tank to ensure that they do not bring any diseases to your tank.

Last Words

The Bucktooth tetra’s primary concern is learning how to control its aggressiveness.

It will not take long for your tank to become a disaster if you don’t plan ahead of time.

But, provided you create a setting that minimizes the aggressiveness of these fish, they may be a lot of fun to keep. You’ll get treated to a never-ending stream of activity and color.

They are easy to care for once you know what they need, so give them a try if you are interested in having a new pet!

We hope you enjoyed this article and found it helpful to learn more about these fantastic creatures.

If you have any questions, please share them with us in the comment section below.