Silver Arowana Identification Guide
Identify the silver arowana by its long torpedo body, upturned barbeled mouth, and large silvery scales.
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Key identification features
- Elongated, laterally compressed, torpedo-shaped body reaching 60 to 100+ cm
- Large, upturned mouth with two fleshy barbels on the lower jaw
- Large, plate-like silvery scales with a faint pink or blue iridescent sheen
- Long-based anal fin extending nearly to the tail, mirrored by a similarly long dorsal fin set far back
- Broad, fan-like pectoral fins
- Overall plain silver-gray coloration without bold patterning
Common look-alikes
- Asian arowana: has larger, thicker scales with a strongly outlined mosaic pattern and often gold or red coloration, while silver arowana keeps plain, unmarked silvery scales
- Black arowana: juveniles show black fins edged in white or yellow, unlike the plain silver-gray fins of the silver arowana
- Freshwater barracuda-like fish: lack the upturned, barbeled mouth that is distinctive of arowanas
Where you'll see one
Silver arowanas inhabit slow-moving blackwater and whitewater rivers, floodplains, and flooded forest habitats throughout the Amazon basin of South America, cruising near the surface where they ambush prey from above.
Frequently asked questions
How do I tell a silver arowana from an Asian arowana?
Look at the scales and color: silver arowana has plain, unmarked silvery scales, while Asian arowana has bolder, outlined scale patterns and often gold, red, or orange coloration.
What is the most reliable feature to identify an arowana at a glance?
The strongly upturned mouth with two chin barbels, combined with a long torpedo-shaped body and fins set far back toward the tail.