Silver Arowana and Similar Species
Osteoglossum bicirrhosum
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Open the appSeveral fish can be confused with Silver Arowana. Here are the key differences.
Species often confused with {name}
Black Arowana
Osteoglossum ferreirai
Key differences: Juvenile Black Arowanas have a distinct black stripe along their lateral line, which fades with age, and a more pronounced blackish coloration overall compared to the silvery-white of O. bicirrhosum. Adults are generally darker and less reflective than Silver Arowanas. The barbels of O. ferreirai are also typically shorter and less prominent.
Asian Arowana
Scleropages formosus (and other Scleropages species)
Key differences: Asian Arowanas (e.g., Red Arowana, Green Arowana, Gold Arowana) belong to a different genus. They possess much larger, more ornate scales, often with vibrant colors (red, gold, green). Their body shape is generally more robust, and their barbels are shorter and thicker, positioned differently on the snout. They also have a more distinct caudal fin that is not as confluent with the dorsal and anal fins.
African Arowana
Heterotis niloticus
Key differences: The African Arowana is from a different family (Arapaimidae) and has a much more elongated, cylindrical body. It lacks the prominent barbels of Osteoglossum species and has a smaller, more terminal mouth. Its coloration is typically duller, often brownish or grayish, and its scales are not as large or reflective.
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