Threadfin Rainbowfish and Similar Species
Iriatherina werneri
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Open the appSeveral fish can be confused with Threadfin Rainbowfish. Here are the key differences.
Species often confused with {name}
Pseudomugil gertrudae
Pseudomugil gertrudae
Key differences: While also a small, attractive rainbowfish, Pseudomugil gertrudae (Spotted Blue-eye) lacks the extreme fin elongation of Iriatherina werneri. Its fins are typically rounded or slightly pointed, and its body is often adorned with distinct black spots, which are absent in I. werneri.
Pseudomugil furcatus
Pseudomugil furcatus
Key differences: Pseudomugil furcatus (Forktail Rainbowfish) has distinctly forked yellow and black caudal fins and yellow pectoral fins, but its dorsal and anal fins are not as dramatically elongated and filamentous as those of Iriatherina werneri. Its body shape is also slightly more robust.
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