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Threadfin rainbowfish - Iriatherina werneri

Threadfin rainbowfish - Iriatherina werneri

Scientific name: Iriatherina werneri

Common name: Threadfin rainbowfish

Family: Melanotaeniidae

Usual size in fish tanks: 4 - 5 cm (1.57 - 1.97 inch)

014

Recommended pH range for the species: 6 - 8

Recommended water hardness (dGH): 5 - 12°N (89.29 - 214.29ppm)

0°C 32°F30°C 86°F

Recommended temperature: 26 - 30 °C (78.8 - 86°F)

The way how these fish reproduce: Spawning

Where the species comes from: Oceania

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Top levels

Food and feeding

Do not be fooled by the size of this fish’s mouth, they have a very narrow throat. Only smaller foods must be given to Threadfin rainbowfish, quality flake and live foods are ideal for them. If using granular foods, always use the smallest size.

Origin

Threadfin rainbowfish are to be found in New Guinea and North Australia.

Sexing

The males will have longer fins and be much more colorful.

Breeding

Threadfin rainbowfish need perfect water quality to spawn; large changes at a slightly cooler temperature will induce this. Use a spawning mop, as the eggs will need to be removed once they are laid. The fry will be very small, feed with Infusoria until they have grown slightly and then feed with newly hatched brine shrimp.

Lifespan

The expected life span for Iriatherina werneri is 3-5 years.

Short description

Due to the males having quite long fins, avoid keeping them with fin nipping fish. Iriatherina werneri require well planted tanks but with open swimming spaces at the front.

Pictures

Bought by aqua-fish.net from jjphoto.dk.

Threadfin rainbowfish, picture 1 Threadfin rainbowfish, picture 2

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