How to Identify Glass Barb

To identify Glass Barb (Laubuka laubuca), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Body largely translucent, appearing silvery-white to yellowish, with a prominent, often iridescent, lateral stripe running from the operculum to the caudal peduncle. Fins are hyaline (clear) to slightly yellowish. Some individuals may exhibit a faint reddish or orange tint, especially during breeding.

Scale type

cycloid

Mouth position

superior

Distinctive features

Highly compressed, hatchet-shaped body, Translucent body allowing visibility of internal organs, Superior (upward-pointing) mouth, Long, pointed pectoral fins

Dorsal fin

Small, located posteriorly, with 2 unbranched and 7-8 branched rays.

Tail fin

Deeply forked, with pointed lobes.

Pectoral fin

Long and pointed, extending significantly, giving a 'winged' appearance.

Distinctive fins

Pelvic fins are small and located abdominally. Anal fin is long, originating anterior to the dorsal fin, with 3 unbranched and 15-19 branched rays.

Identification Tips

1. 1

   Body Shape

   Look for the distinctively compressed, hatchet-like body profile, which is much deeper than it is wide.

2. 2

   Translucency

   The body is largely transparent, allowing a view of the spine and internal organs, especially in younger specimens.

3. 3

   Mouth Position

   The mouth is distinctly upturned (superior), adapted for feeding on surface insects.

4. 4

   Pectoral Fins

   Observe the long, pointed pectoral fins that extend outwards, contributing to its 'winged' appearance.

5. 5

   Lateral Stripe

   A prominent, often iridescent, silvery or golden lateral stripe runs along the flank.

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