Fish Profile: Bloodfin Tetra 2

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The Bloodfin Tetra is a popular freshwater aquarium fish which belongs to the family Characidae under Order Characiformes of Class Actinopterygii.

It is also known as True Bloodfin, Glass Bloodfin, Red Finned Tetra.

The Bloodfin tetra is a benthopelagic species that is native to the Río Paraná basin in South America. It inhabits in streams, rivers and tributaries, particularly in areas shaded by floating or overhanging vegetation.

The bloodfin tetra has a slender and elongated body with small mouth. Body is silver in color and it is easily recognized due to their colorful fins.

The caudal fin, anal fin, ventral fin and dorsal fin are vivid red in color. Their caudal and dorsal fins have a distinct red dot at the base.

The bloodfin tetra is an excellent community species that grows up to 5.5 cm in length and can live up to 10 years.

It is an omnivore and in wild condition, it feeds chiefly on crustaceans, worms and small insects. The male bloodfin tetra is a bit more colorful than the female and it has a small hook on the anal fin.

It often spawns spontaneously. At the time of spawning it jumps above the surface of the water and releases the eggs. A female usually produces 300-500 eggs during each spawning.

Fact Sheet – Bloodfin Tetra

  1. Scientific Name: Aphyocharax anisitsi
  2. Family: Characidae
  3. Size Range: up to 5.5 cm in length
  4. Diet: Omnivore
  5. Tank Size: 10+ gallons
  6. Tank Set-up: Densely planted
  7. Tank region: It swims surface and Middle layer
  8. Temperature: 64.5 – 82.5°F
  9. Carbonate Alkalinity (dKH): 30
  10. Carbonate Hardness (dKH): 4-12
  11. Water pH: 6-8
  12. Origin: Argentina and Rio Parana
  13. Temperament: Peaceful
  14. Care Level: Easy
  15. Habitat: South America river basins
  16. Lifespan: 5 to 8 years
  17. Reproduction: Egg layers
  18. Breeding: The Bloodfin tetra is also easy to breed in captivity.
  19. Water Movement: Slow to Medium

Bloodfin Tetra Care

The bloodfin tetra is a great choice for the trainee hobbyist due to their peaceful behavior and easy care level.

It does well in a well planted aquarium with slow to medium water movement and with plenty of swimming space. You can use sturdy plant species like Java fern which thrives without any special light. It will also help to control excessive algae growth because it competes for nutrients with the algae.

Many aquarists use a blue background in the aquarium to bring out the colors of their bloodfin tetras.

The aquarium should have some floating vegetation that provides shelter during swimming surface level of the tank. The tank also should have a very tightly fitted cover that helps to prevent tetra during jumping.

It requires 10 gallons or larger aquarium for 6 or more tetras of same size.

Tetras are adapted to soft and slightly acidic water which is essential for breeding. The aquarium should have good water quality and suitable water temperature and pH that range from 64.5 – 82.5°F and 6-8 respectively.


The bloodfin tetra is great for beginners due to their attractive and hardy characteristics. It is an active, peaceful schooling fish that mix well with other community fish.

They prefer to swim in schools of six or more.

It can share their aquarium with other community such as danios, rasboras, catfish, coridoras, other tetras, less aggressive barbs and gouramis.


It is an omnivore fish. In captive condition it should be fed a variety of diet such as brine shrimp, high quality flakes, frozen or freeze dried blood worms, glass worm, live Bloodworms, Micro pellet food, Daphnia and tubifex.

The diet should be offered 2-3 times a day.


It is tough and generally resistant fish but sometimes it is attacked by parasitic disease. Traditional copper or malachite green bath are very effective to treat your bloodfin tetras

Picture Gallery


See the Bloodfin Tetra in action in the video below:-

Other Helpful Resources

  1. – Bloodfin Tetra Care Sheet
  2. Aquatic Community – Bloodfin Tetra
  3. Wikipedia – Bloodfin Tetra Wiki

Share Your Thoughts

Have you kept a Bloodfin Tetra in your tank before? Share your thoughts and tips in the comments section below.

About Dennis Hanson

Dennis is an experienced aquarist with many years of knowledge and experience in keeping successful tanks. He also has no relations to the pop group Hanson.

2 thoughts on “Fish Profile: Bloodfin Tetra

  1. Reply Md.Faizaan Azim Jan 10,2015 4:01 pm

    Hi Dennis,
    myself faizaan,I have set up my first tank if 15 gallons and I am interested i schooling of the fishes,I have a densely planted aquarium with hardy plants like java ferns but I haven’t put any fish in it.I was interested in bloodfin tetras and white cloud mountain minnows so I wanted to know if the will work well together.Also I very much wanted to know how many fishes I should put in my 15 gallons tank.

    Please give me a fast reply cuz i cant wait to see my little buddies roam in my aquarium :)

  2. Reply ryan webster Jan 11,2015 2:28 pm

    Personally faizaan my minnows and bloodfin tetras get on perfectly they are merging together as a school

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