Buenos Aires Tetra (Hemigrammus caudovittatus)

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Buenos Aires Tetra

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Buenos Aires Tetra

Hemigrammus caudovittatus

57 Litres (15 US G.)

5-6 cm (2-2.4")




6.5 - 7.5

18 -25 °C (64.4-77°F)

5-10 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods

3-5 years



This animal is available captive bred

Additional names

Buenos Aires Tetra

Additional scientific names

Hyphessobrycon anisitsi

Origin[edit | edit source]

South America: Paraná and Uruguay River basins.

Sexing[edit | edit source]

Males are smaller and more vibrant in colour than females.

Tank compatibility[edit | edit source]

A peaceful community fish that should be kept in shoals of 6 or more. Do not keep with fish with long finnage as this Tetra is known to nip. The larger the shoal, generally, the better behaved they are.

Diet[edit | edit source]

Will accept most foods including pellet and flake as well as live/frozen food such as bloodworm and daphnia. A large amount of herbivorous foods should be given. Spirulina flakes are essential.

Feeding regime[edit | edit source]

Feed once or twice a day.

Environment specifics[edit | edit source]

Keep in large and spacious tanks with open swimming room and some hiding places. Must not be kept in planted tanks as they will eat foliage, keep with silk or plastic plants only. Although, Java fern, Java moss, and some anubias may be resistant to the Buenos Aires tetra's grazing.

Behaviour[edit | edit source]

An active shoaling fish. They are known fin-nippers who are best kept with fast fish without trailing or fancy fins. In groups of less than 6 fish, they may be shy. Plenty of cover using rocks and plastic or silk plants will encourage more visibility as they will feel more secure.

Identification[edit | edit source]

The body is brown-silver in colour with the back darker than the belly. The upper part of the iris is red. In males, parts of all fins are red. The female's have light pink fins. A black stripe extends from the base of the tail to its apex. Also near the base tail, the colour is lemon yellow. At the tips of the dorsal, anal, and pectoral fins is a white fringe.

Pictures[edit | edit source]

Videos[edit | edit source]

Albino Buenos Aires Tetras:

External links[edit | edit source]