How to Identify Glassfish

To identify Glassfish (Chanda nama), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Predominantly transparent, with a silvery sheen on the operculum and belly. Some individuals may exhibit a faint yellowish or greenish tint. The internal organs are visible through the translucent body.

Scale type

cycloid

Mouth position

superior

Distinctive features

Highly transparent body, Two distinct dorsal fins, the first spiny and the second soft-rayed, Large eyes, Laterally compressed body

Dorsal fin

Two dorsal fins: the first with 7-8 spines, the second with 1 spine and 9-11 soft rays. The first dorsal fin is notably higher in males, especially during breeding.

Tail fin

Forked caudal fin with 17 principal rays.

Pectoral fin

Pectoral fins are relatively small, with 11-12 rays.

Distinctive fins

Anal fin with 3 spines and 9-11 soft rays. Pelvic fins with 1 spine and 5 soft rays.

Identification Tips

1. 1

   Transparency

   The most striking feature is its almost completely transparent body, allowing internal organs to be seen. This distinguishes it from most other small freshwater fish.

2. 2

   Dorsal Fins

   Possesses two distinct dorsal fins. The first is spiny and often elevated, especially in mature males. This is a key characteristic of the Ambassidae family.

3. 3

   Body Shape

   Its body is strongly compressed laterally and relatively deep, giving it a 'knife-like' profile when viewed head-on.

4. 4

   Size

   Typically small, rarely exceeding 10 cm in total length.

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