Threadfin Rainbowfish (Iriatherina werneri) Fish Species Profile
The Threadfin Rainbowfish is a small fish which holds excellent appeal. They are very peaceful but are not recommended for a community aquarium as they are easily outcompeted for food, and their fins may get nipped by other species of fish.
They are best kept with their species or amongst other fish comparable in disposition and size.
The Threadfin Rainbowfish sport long, elegant fins and the male displays a feather-like pattern, which is especially impressive.
These fish are silver in colour, as well as a significant number of other colours all over its body which is dependent on the environment, diet, etc.
When provided with perfect conditions, the Threadfin Rainbowfish can sparkle, featuring vibrant tints and shimmering scales. This fish can make a compelling addition to any tank.
|Scientific Name||Iriatherina werneri|
|Other Names||Featherfin Rainbow|
|Best kept as||Groups 6+|
|Lifespan||3 - 5 years|
|Maximum Size||3 - 5 cm|
|Temperature||71 - 86 ℉ (21.7 - 30 ℃)|
|PH||5 - 8|
|GH||3 - 10|
|KH||7 - 10|
|TDS||20 - 220|
Threadfin Rainbowfish are native to slow-moving streams, lagoons, freshwater marshes, billabongs and freshwater swamps, containing clear water and abundant macrophytes in New Guinea and Northern Australia and have also been found in the lakes Kala and Bosset.
They inhabit thickly vegetated areas associated with driftwood and Lilly pads which provide them with sun-filtered shade and shelter that the fish require.
Ideally, much of the Threadfin Rainbowfis's diet should incorporate live foods such as Daphnia, Artemia, Moina, micro worm, and copepods. However, small crushed floating dried foods such as flakes and granules are also accepted.
Just remember they have tiny mouths so the food will need to be a suitable size.