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Blue line rasbora (Rasbora einthovenii) — Cyprinidae

Blue line rasbora

Rasbora einthovenii
Family: Cyprinidae
LC · Least Concern

The Blue line rasbora (Rasbora einthovenii) is a freshwater fish of the family Cyprinidae that grows up to 9 cm.

Length
9 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Southeast Asia, in Sundaland.
Edibility
Not eaten

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Description

The blue line rasbora is a small cyprinid of the family Cyprinidae from Southeast Asia, in Sundaland. The species reaches about 9 cm and has a slender, silvery body with a striking dark lateral stripe running from the snout into the tail fin. It inhabits clear, often dark-coloured forest streams with a soft, acidic bottom. The diet consists of worms, small crustaceans and insects. As a schooling fish it swims in groups near the surface. Through its attractive stripe and calm nature the species is popular in the planted aquarium.

Frequently asked questions

How do you recognise the Blue line rasbora?

The Blue line rasbora has a torpedo-shaped body, is mainly silver-grey and shows a horizontal stripes pattern. Black longitudinal stripe extending into the caudal fin; schooling fish of forested blackwater streams; popular aquarium fish.

Where does the Blue line rasbora live?

The Blue line rasbora lives in fresh water and is mostly found around mixed bottom. Southeast Asia, in Sundaland.

How big does the Blue line rasbora get?

The Blue line rasbora grows to a maximum of about 9 cm. On average the species is around 6 cm.

Is the Blue line rasbora dangerous to humans?

No, the Blue line rasbora is harmless to humans. None required: this species is harmless to humans.

Is the Blue line rasbora edible?

The Blue line rasbora is not usually eaten.

More photos

Blue line rasbora (Rasbora einthovenii) — Cyprinidae — 2
Wikimedia Commons — Ahsan_al_hidayat (CC BY-SA 3.0)
Blue line rasbora (Rasbora einthovenii) — Cyprinidae — 3
iNaturalist ((c) Jiayuan Lin, some rights reserved (CC BY-NC))
Blue line rasbora (Rasbora einthovenii) — Cyprinidae — 4
Wikimedia Commons — Lerdsuwa (CC BY-SA 3.0)
Blue line rasbora (Rasbora einthovenii) — Cyprinidae — 5
iNaturalist ((c) Jiayuan Lin, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Blue line rasbora verified
Scientific name
Rasbora einthovenii
Family
Cyprinidae
Other names
Blueline rasbora; Brilliant rasbora verified

Appearance

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

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
Southeast Asia, in Sundaland. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Worms, small crustaceans and insects sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Black longitudinal stripe extending into the caudal fin; schooling fish of forested blackwater streams; popular aquarium fish. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. 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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