How to Identify Silver Arowana

To identify Silver Arowana (Osteoglossum bicirrhosum), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Silvery-white to metallic silver, sometimes with a faint pinkish or bluish sheen, especially when young. The scales are large and reflective, giving it a 'dragon-like' appearance. Fins are typically translucent or slightly yellowish.

Scale type

ganoid

Mouth position

superior

Distinctive features

Large, prominent scales, Upturned mouth with two prominent barbels on the lower jaw, Elongated, flattened body, Large eyes positioned towards the top of the head, Dorsal and anal fins are long and almost merge with the caudal fin

Dorsal fin

Long, low, and positioned far back on the body, almost confluent with the caudal fin.

Tail fin

Rounded to slightly pointed, often appearing continuous with the dorsal and anal fins.

Pectoral fin

Relatively small and positioned low on the body.

Distinctive fins

The dorsal and anal fins are remarkably long, extending nearly to the caudal fin, giving the posterior half of the fish a continuous, flowing appearance. Pelvic fins are small and located abdominally.

Identification Tips

1. 1

   Body Shape and Coloration

   Look for the long, flattened, silvery body with very large, reflective scales. The overall impression is sleek and metallic.

2. 2

   Mouth and Barbels

   The most distinctive feature is the large, upturned mouth with two prominent, fleshy barbels extending forward from the tip of the lower jaw. This is a key differentiator from other arowana species.

3. 3

   Fin Structure

   Observe the long dorsal and anal fins that extend almost to the caudal fin, giving a continuous appearance to the posterior body. The caudal fin is typically rounded.

4. 4

   Scale Size

   The scales are exceptionally large and distinct, forming a clear pattern along the body.

Explore Silver Arowana