Threadfin Rainbowfish (Iriatherina werneri)

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Threadfin Rainbowfish

Threadfinrainbowfish1-2113.jpg
Threadfin Rainbowfish

Iriatherina werneri

57 Litres (15 US G.)

3-5.1cm (1.2-2 ")

sg

Freshwater

pH

6 - 8

26 -30 °C (78.8-86°F)

5-12 °d

1:2 M:F

Omnivore
Pellet Foods
Flake Foods
Live Foods
Other (See article)

3-5 years

Family

Melanotaeniidae

This animal is available captive bred




Origin

Asia and Oceania: central-southern New Guinea and northern Australia.


Sexing

The male has more elongated dorsal and ventral fins. These fish can be difficult to breed in captivity as the tiny fry are difficult to feed and keep alive.


Tank compatibility

An entirely peaceful fish that is vulnerable to being fin-nipped. Keep this fish in groups of its own kind, with more females than males. Multiple males will mean you see the best colours as they will display to each other.


Diet

Best fed on small live food such as daphnia and tubifex, may also learn to accept flake and pellets.


Feeding regime

Feed once or twice a day.


Environment specifics

Appreciates a densely planted mature tank with good filtration but not too strong a current.


Behaviour

An active peaceful fish. Males may chase each other and display.


Identification

A distinctive little Rainbowfish, with an elongated pointed body, the dorsal, anal and caudal have very long extended rays, giving the fish it's common name. The body is coloured iridescent yellow/green with hints of blue. The fins can vary in colour.

Pictures

Videos

Male displaying for a female:

External links