“The Ultimate Guide || Bloodfin Tetra Care, Tank Mates, Lifespan, Breeding……2021”



Bloodfin tetra ,glass bloodfin tetra

The Bloodfin Tetra is also known as true bloodfin Tetra, redfin tetra, or glass bloodfin Tetra, this is very popular among fish lovers.

Majorly because of their amazing color variant most aquarists love to keep these Bloodfin tetra fish in their tank, these little fish look very attractive.

Bloodfin tetra comes from the Parana river in Brazil, Argentina, and South America.

They inhabit freshwater streams and small river tributaries, usually in minimal areas of thick aquatic vegetation, and are shaded by tree canopy above.


The Bloodfin Tetra looks beautiful with silvery-greenish body color and the main thing which gave their name red fins. 


The Bloodfin Tetra fish are active, fast swimmers, and a bit shy of nature’s fish, especially when you keep them in the beginning.

These fish are known to live in groups of 10-20, they perform well in groups.

Are bloodfin tetra is fin nippers 

It’s normal behavior to sniff each other occasionally, pulling the nipper out until it grows up and gets out of hand.

Bloodfin Tetra Size 

The Bloodfin Tetra fish reach their size about 2 inches, these are small-sized fish and are the best option for you, you can add several red fins into your tank as they are tiny fish.

Bloodfin Tetra Size 




In a well-maintained aquarium, they can live about 5-7 years or more if cared for properly.

Tank Requirement

As we told you earlier these are small-sized fish and should be kept in a group of at least 6-8 fish,

Now the question is What Size Aquarium Do They Need? they require a tank of 30 gallons.

If you set up a larger tank then it will be the best thing for these beautiful fish in which they’ll live a stress-free life

The Bloodfin Tetra usually swims in the middle to the upper part of the tank.

Tank setup 

Bloodfin tetras are shoaling fish that prefer to live in groups of at least 5-6 fish. The Bloodfin Tetra needs a large tank set up for its natural habitat.

Since they are large-sized fish, you will need to set up a large tank to keep them easily. In the wild, they live happily with dense and dense plants.

It would be better to provide them with their natural environment and set up the tank according to the fish.

Since they like to live with compact plants and gravel, you need to set up a similar tank for it.

And one of the most important things you should be aware of is to change your aquarium water weekly. You can use the filter to clean the aquarium water.

Bloodfin tetra fish care


What fish can live with Bloodfin tetras?

  • Neon Tetra
  • Ember Tetra
  • Green Neon Tetra
  • Cardinal Tetra
  • Ghost shrimp, amano shrimp
  • Gentle Plecos
  • Rasbora
  • Snails
  • Cory Catfish
  • Bottom-dwelling Catfish
  • South American Dwarf Cichlids
  • Danios
  • Corydoras
  • Other Tetras


The Bloodfin Tetras are easy to feed as they are omnivorous and accept all types of food. 

They will eat everything you choose to give them, you can provide them live or dried food such as:- 

  • Blood worms,
  • mosquito larvae,
  • bring shrimp,
  • flake or micro pullets,
  • And vegetables. 

Provide them with good quality food that will help the fish to get their original color and long life. 

Here you need to feed them 2-3 times a day but make sure to feed them according to the size of their mouths as they are small fish that require small meals.


Water parameters 

Bloodfin tetras perform well in the water which is quite similar to their natural habitat, try to create the same atmosphere in your aquarium.

Water temperature for these beautiful tetras should be maintained between 64-82°F (17.8-27.8°C)

PH level for bloodfin tetras should be maintained between 6.0-8.0 

Water hardness: 2 to 3 dGH

keep your eyes on the water parameters as they play an important role in the aquarium hobby through this you can provide a good atmosphere to your beautiful fish.

Sex different 

These tetras are easy to determine Bloodfin Tetra male vs female, the male blood fin tetra have brighter color than a female and the other thing is to determine:- white edge on their pelvic and anal fins. 

Along with this a male bloodfin, Tetra has a hook-shaped anal fin while the female has a rounded anal fin. 

It will be an easy task for you to find the gender difference. 

Also read about:- Congo tetra fish



The breeding process for these beautiful tetras is not a difficult task, however, many people are confused about how to breed bloodfin Tetras.

For this, you need to set up a separate breeding tank and add a male or female redfin tetras

The male to female ratio for breeding should be 1:2 (1 male: 2 female).

After adding them to the tank they start to spawn and the female produces around 300-400 tiny eggs.

After this, remove all adult tetras from the tank, they are omnivorous and harmful to eggs so they can eat their own eggs.

Glass bloodfin Tetra

After 5-6 days the fry come out, they will start swimming slowly, you need to focus more on these tiny frys especially when they’re small

You can provide them with infusoria, brine shrimp, and some dry food sources.

Bloodfin Tetra Care

Bloodfin tetra is quite easy to care for as it is a hardy fish of the tetra species. even a complete beginner can keep these fish with a small-medium tank.

If you’re looking for an easy-to-care fish, these tetras can be a good option for you.

It’s also important to keep a clean aquarium and watch your glass bloodfins carefully for indications of illness so your fish will survive more.


Bloodfin tetras are hardy fish and can fight against any kind of disease if you keep them with proper care of their feelings.

And a balanced diet and proper water parameters. It will be hard for your fish to get sick. 

Although you need to follow the precautions, sometimes they get sick from freshwater diseases. 

They’re mainly affected by ich infection ( small white spots can be seen on the skin or gills of the Bloodfin Tetra), these small spots are called ich. 

They also can be affected by parasitic infestations; this disease is caused by poor water conditions of the aquarium. 

To protect your fish from these diseases provide them with clean water, and keep the water conditions balanced which can protect the fish from diseases. 


Are glass Bloodfin tetras aggressive?

Yes, the glass bloodfin tetras are aggressive fish.

Can Bloodfin tetras live alone?

These are cummunity fish should be kept in a group and got stressed when someone keep them alone.

Are Bloodfin Tetra Suitable for your Aquarium?

Yes they are good option for your aquarium even if you are a beginner.

Are Bloodfin Tetras difficult to care for?

They are easy to care for, however, you need to maintain their feeding schedule or water parameters.

Can I put Bloodfin Tetra in an aquarium with other fish, or do they have to stay by themselves?

As they are shoaling fish if add them with other fish they’ll perform better, you can add them with:- Neon Tetra Ember Tetra, Green Neon Tetra, Cardinal Tetra, Ghost shrimp, Amano shrimp, gently Plecos, Rasbora, Snails, Cory Catfish, Bottom-dwelling, Catfish, South American Dwarf, Cichlids, Danios, Corydoras, Other Tetras

What is the lifespan of a Bloodfin Tetra?

The average life span of bloodfin tetra is 5-8 years,

What is the average size of the Bloodfin Tetra?

The Bloodfin Tetra fish reach their average size of about 2 inches, these are quite small fish and can be the best choice for your aquarium.


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