Least rasbora (Boraras urophthalmoides)

Scientific name: Boraras urophthalmoides Kottelat, 1991

Least rasbora (Boraras urophthalmoides)

The Least rasbora (Boraras urophthalmoides) is a freshwater fish of the family Cyprinidae that grows to about 4 cm (1.6 in). It is easy to keep and peaceful and needs a tank of at least 40 L (11 US gal), water at 23–26°C (73–79°F) and a pH of 6.5–7.5. Native range: Asia, Widely distributed in Thailand and part of Cambodia and Vietnam.

Least rasbora care at a glance

Care level
Easy
Temperament
Peaceful
Adult size
4 cm (1.6 in)
Minimum tank
40 L (11 US gal)
Temperature
23–26°C (73–79°F)
pH
6.5–7.5
Hardness
2–12 dGH (36–214 ppm)
Diet
Omnivore. Accepts flakes, frozen foods and live foods.

Biology

First dorsal-fin ray darkened; dark spot at caudal-fin base and anal-fin base; prominent lateral stripe that fades on peduncle.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Boraras urophthalmoides
Family
Cyprinidae (Minnows or carps)
Order
Cypriniformes (Carps)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
4.0
Environment
Freshwater; benthopelagic
Climate
Tropical
Distribution
Asia.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: of no interest; aquarium: commercial
Resilience
High, minimum population doubling time less than 15 months (tm

More barbs, danios & rasboras

See all barbs, danios & rasboras

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.

Last updated