Oneline tetra (Nannaethiops unitaeniatus)

Scientific name: Nannaethiops unitaeniatus G?nther, 1872

Oneline tetra (Nannaethiops unitaeniatus)

The Oneline tetra (Nannaethiops unitaeniatus) is a freshwater fish of the family Distichodontidae that grows to about 6.2 cm (2.4 in). It is easy to keep and peaceful, is best kept in a species tank and needs a tank of at least 75 L (20 US gal), water at 23–26°C (73–79°F) and a pH of 6.5–7.5. Native range: Africa, Niger and Cross Rivers in Nigeria.

Oneline tetra care at a glance

Care level
Easy
Temperament
Peaceful
Community tank
Not suitable
Adult size
6.2 cm (2.4 in)
Minimum tank
75 L (20 US gal)
Temperature
23–26°C (73–79°F)
pH
6.5–7.5
Hardness
1–12 dGH (18–214 ppm)
Diet
Omnivore. Accepts flakes, frozen foods and live foods.

Biology

Dorsal soft rays (total): 11-16; Anal soft rays: 10. Caudal peduncle 1-1.5 x longer that high. Maxillaries extending to the anterior border of eyes. Lateral line always complete. Upper part of body gray olive, lower part whitish yellow. Dark lateral band from eye to caudal, dark stripe in middle of caudal and black spot at tip of dorsal.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Nannaethiops unitaeniatus
Family
Distichodontidae
Order
Characiformes (Characins)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
6.2
Environment
Freshwater;; pH range: 6.5 - 7.5; dH range: ? - 12 pelagic
Climate
Tropical
Distribution
Africa: Niger and Cross Rivers in Nigeria, Cameroon, Gabon, Congo, lower part of Congo basin. Reported from Ghana and Chad basin.
Conservation status (IUCN)
Least Concern (LC)
Threat to humans
Harmless
Uses
Aquarium: commercial
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

More tetras & characins

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Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.

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