Freshwater
Threadfin rainbowfish
Iriatherina werneri
Melanotaeniidae
Facts
Characteristics
- Length
- Up to 4 cm
- Body shape
- Streamlined
Care
- Group
- At least 6 together
- Smallest aquarium
- 24 liters
- Diet
- Missing
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Behavior
Water values
Smallest tank
Range
Videos
【4K】Iriatherina werneri, Pseudomugil signifer and another Rainbowfish in Kiunga, Papua New Guinea
DiscoveryPlanetNov 23, 2019
【4K】Threadfin Rainbowfish ニューギニアレインボー
DiscoveryPlanetNov 4, 2019
Iriatherina Werneri
Green AquaMay 12, 2015
More about the species
Description
Inhabits lowland swamps, drainage ditches and streams that have abundant vegetation. Occurs in slow-flowing streams, swampy ponds and billabongs with abundant aquatic vegetation. Temperature and pH ranges are 23°-28°C and 5.2-6.6, respectively. Most commonly found along the heavily vegetated margins of lily lagoons and small streams. Feeds mostly on diatoms and micro-crustaceans. Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm. Well established in the aquarium hobby, but its longetivity is relatively brief, averaging only 2-3 years.
Other names
In other languages
- Dragefinne
- Werners strålefisk, Werners Regnbuefisk
- Viirikirjokala, Viirisädekala
- Werneri
Articles
All articles
How many fish can I keep?4 min read
Why "one cm of fish per liter" falls short, and what adult size, schools, territory and swimming zones mean for how many fish a tank can hold.
Fin rot and columnaris4 min read
Bacteria that attack the fins, mouth and skin, nearly always after poor water. When water changes are enough, and when more is needed.
How to set up an Asian aquarium5 min read
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.
How to set up an aquarium from Australia and New Guinea4 min read
The home of rainbowfish: water, substrate, plants and light for rainbowfish, blue-eyes and peacock gudgeons, with a long aquarium and open water in the middle.