Male Threadfin Rainbowfish (Iriatherina werneri)

Fish Species

Threadfin Rainbowfish

Iriatherina werneri

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About

A delicate small rainbowfish famous for the spectacular elongated fins of mature males. It is peaceful and best kept in a calm planted aquarium with gentle tankmates that will not outcompete it for food. A group with multiple females encourages natural displaying.

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Classification

Scientific Name

Iriatherina werneri

Origin Region

Southern New Guinea and northern Australia

Water Type

freshwater

Diet

Omnivore

Care Difficulty

Intermediate

Max Size

5 cm | 2.0 in

Water Requirements
Small Rainbowfish / Blue-eye

Temperature

23–28°C

pH

5.5–7.5

GH Hardness

3–12dGH

KH Alkalinity

2–8dKH

Min Tank Size

60L