Fin's Fish Guide
The Java medaka (Oryzias javanicus) is a brackish-water fish of the family Adrianichthyidae that grows up to 5 cm.
Description
The Javanese ricefish is a small ricefish (Adrianichthyidae) from Southeast Asia. The species is very small and translucent with large, high-set eyes. It lives in schools at the surface of ditches, canals, ponds and brackish coastal waters with dense aquatic plant growth. At the surface it snaps at mosquito larvae, small zooplankton and small invertebrates. The female carries the eggs for a time as a cluster on her belly. The species is harmless to humans.
Frequently asked questions
How do you recognise the Java medaka?
The Java medaka has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Very small, translucent surface fish; the female carries the eggs as a cluster on her belly.
Where does the Java medaka live?
The Java medaka lives in brackish water and is mostly found around mixed bottom. Southeast Asia; ditches, canals and brackish coastal waters.
How big does the Java medaka get?
The Java medaka grows to a maximum of about 5 cm. On average the species is around 3 cm.
Is the Java medaka dangerous to humans?
No, the Java medaka is harmless to humans. None required: this species is harmless to humans.
Is the Java medaka edible?
The Java medaka is not usually eaten.
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All data
Identification
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Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Oryzias
More from the family Adrianichthyidae
Want the complete picture on the Java medaka?
Point your camera at the fish and Fin names the species in seconds. Free, and the Java medaka is one of 12,519 species in the app.