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Blackline rasbora (Rasbora daniconius) — Cyprinidae

Blackline rasbora

Rasbora daniconius
Family: Cyprinidae
LC · Least Concern

The Blackline rasbora (Rasbora daniconius) is a brackish-water fish of the family Cyprinidae that grows up to 15 cm.

Length
15 cm
Water
Brackish
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The slender rasbora is a small cyprinid from South and Southeast Asia. The species grows to about 15 cm and has a slender, silvery body with a conspicuous dark longitudinal stripe from head to tail. It occurs in a wide range of habitats: ditches, ponds, canals, rivers and rice fields, including slightly brackish water. As an omnivore it feeds on insects, small invertebrates, algae and plant matter. It is a peaceful, active schooling fish popular in the aquarium. Owing to its adaptability it is widespread and common. The species is harmless to humans.

Frequently asked questions

How do you recognise the Blackline rasbora?

The Blackline rasbora has a torpedo-shaped body, is mainly silver-grey and shows a horizontal stripes pattern.

Where does the Blackline rasbora live?

The Blackline rasbora lives in brackish water and is mostly found around mixed bottom.

How big does the Blackline rasbora get?

The Blackline rasbora grows to a maximum of about 15 cm. On average the species is around 8 cm.

Is the Blackline rasbora dangerous to humans?

No, the Blackline rasbora is harmless to humans.

Is the Blackline rasbora edible?

The Blackline rasbora is rarely eaten.

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All data

Identification

Dutch name
Slanke rasbora sourced
English name
Blackline rasbora verified
Scientific name
Rasbora daniconius
Family
Cyprinidae
Other names
Common rasbora; Slender barb; Slender rasbora verified

Appearance

Size class
Small verified
Max length (cm)
15.0 verified
Average length (cm)
8.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Horizontal stripes inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Mixed bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Rarely eaten sourced
Fishing method
Klein van stuk en nauwelijks een hengelsportdoel; wordt vooral incidenteel of als aasvis gevangen. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Rasbora

More from the family Cyprinidae

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