Peacock Bass Azul Cichla 皇帝~满天星蓝帆五间 is BACK ! SHOP
Cart 0

Threadfin Rainbowfish 燕子美人 (Male) 2-3cm

RM 3.00


  • Class: Actinopterygii
  • Order: Atheriniformes
  • Family: Melanotaeniidae
  • Genus: Iriatherina
  • Species: werneri
  • Scientific Name: Iriatherina werneri
  • Minimum Tank Size: 15 gal (57 L)
  • Temperament: Peaceful
  • Temperature: 22.8 to 28.9° C
  • Size of fish - inches: 2.0 inches (5.08 cm)
  • Lifespan: 4 years - Can have a life span of about 3 to 5 years when kept in a well maintained aquarium.
  • Aquarium Hardiness: Moderately hardy
  • Aquarist Experience Level: Intermediate - Very sensitive to water changes.
  • Diet Type: Omnivore
  • Flake Food: Yes - They have tiny throats so finely crush flake foods.
  • Tablet / Pellet: Yes - Tablet/pellet foods must be finely crush flake foods as food that is too large could result in injury.
  • Live foods (fishes, shrimps, worms): Some of Diet - Threadfin Rainbowfish will feed on mosquito larvae, brine shrimp nauplii, daphnia, copepods, grindal and microworms.
  • Vegetable Food: Some of Diet
  • Meaty Food: Some of Diet
  • Feeding Frequency: Several feedings per day - Feed two to three times daily, but give them only what they can consume in less than 5 minutes.
  • Water Changes: Weekly - Weekly water changes of 25 - 50%, depending on stocking density.
  • Minimum Tank Size: 15 gal (57 L)
  • Suitable for Nano Tank: Yes
  • Substrate Type: Sand/Gravel Mix
  • Lighting Needs: Moderate - normal lighting
  • Temperature: 73.0 to 84.0° F (22.8 to 28.9° C)
  • Breeding Temperature: 78.0° F
  • Range ph: 5.5-7.5
  • Hardness Range: 5 - 19 dGH
  • Brackish: No
  • Water Movement: Weak
  • Water Region: Top - Threadfin Rainbowfish will spend most of their time in the upper regions of the tank.

The Threadfin Rainbowfish Iriatherina werneri is a subtle beauty in both its color and exquisite form. The elegant beauty of these fish may be rather hard to believe when you consider the size of this fish, being only about 2 inches (5 cm) long. It's probably even harder to believe if you have seen the stressed pet store appearance of this fish. But a well bred, healthy, adult Featherfin Rainbowfish will display many different intense colors and beautiful fins.

A school of Threadfin Rainbowfish in breeding condition is easily one of the most spectacular sights in the aquarium. The common names, Threadfin and Featherfin, reflect the elegant fins of mature males. The fins are long and flowing with lovely extended filaments on the dorsal fins.

The gorgeous coloring of the Featherfin Rainbowfish paired with a gregarious and peaceful nature makes them an excellent inhabitant for the aquarium. These fish are fairly adaptable and will live happily in a tank without aggression. They are best suited to a planted tank. This fish dislikes harsh lighting and excessive open water. They do need frequent water changes, but a school of these fish will certainly brighten up any aquarium.

The Threadfin Rainbowfish are best kept by a hobbyist with some rainbow fish experience. They are very sensitive to water condition changes. They are also slow and picky feeders because of their small throats. When they are kept in a community tank extra time needs to be taken to make sure they are getting enough food.