Australian Threadfin Rainbowfish (Iriatherina werneri 'Australian')

Fish in the family Melanotaeniidae. Moderate care. Freshwater.

Quick facts

Scientific nameIriatherina werneri 'Australian'

FamilyMelanotaeniidae

Also known asFeatherfin Rainbowfish (Australian form)

Care levelModerate

Reef safetyFreshwater

TemperamentPeaceful (active)

DietOmnivore

Adult size1.8 in

Minimum tank size15 gallons

Water parametersTemp 75-86°F, pH 5.5-7.5, GH 3-12 dGH

Appearance

Elongate body with extended threadlike dorsal and anal fin rays; the Australian form tends toward slightly different finnage tone, with males showing vivid display color.

Difficulty and care for the Australian Threadfin Rainbowfish

Moderate

Origin and habitat

Australia (Cape York vegetated streams)

Keeper notes

Extremely peaceful, slow-feeding regional form of the threadfin; easily outcompeted by fast tankmates. Tiny mouth needs small foods.

Log Australian Threadfin Rainbowfish in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Australian Threadfin Rainbowfish alongside everything else in your reef.

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