The Opal killifish (Leptolebias opalescens) is a freshwater fish of the family Rivulidae that grows up to 4 cm.
Description
The Opal killifish is a killifish (Rivulidae) from shallow coastal streams, pools and swamps of the coastal region of southeastern Brazil. The species grows to about 4 cm and has a slender body; males are brightly coloured with yellow, blue and red tints and coloured fin margins. As a bottom-oriented fish of calm, often oxygen-poor water it snaps at insects, larvae and small invertebrates. Through habitat loss many of these species are threatened. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Opal killifish?
The Opal killifish has an elongate, eel-like body and is mainly multicoloured.
Where does the Opal killifish live?
The Opal killifish lives in fresh water and is mostly found around open water.
How big does the Opal killifish get?
The Opal killifish grows to a maximum of about 4 cm.
Is the Opal killifish dangerous to humans?
No, the Opal killifish is harmless to humans.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Leptolebias
More from the family Rivulidae
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