Threadfin Rainbows Fish pack - Rare

20 In stock
200.00 AUD 14.99 AUD
Size :
14.99 AUD

The Threadfin Rainbowfish or Featherfin rainbowfish (Iriatherina werneri) is a rainbow fish, the only species in the genus Iriatherina. It is characterized by long beautiful fins and is among the most attractive of the rainbowfishes.

The Threadfin Rainbowfish Iriatherina werneri is a subtle beauty in both its colour 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.

The Threadfin Rainbowfish has variable grey-green, yellow, red, and blue body colouration with bright colours that extend to its fins. While these colours are fainter in juveniles, they intensify as the fish reaches adulthood as long as a varied diet of high-quality omnivorous foods is provided.


  • Temperature: 72° - 86° F (22° - 30° C)
  • pH: 5.0 - 8.0
  • KH: 7 - 10 dKH
  • Minimum tank size: 10 gallons


  • Diet: Omnivorous. High-quality flake, freeze-dried and frozen foods, both meaty and plant-based.
  • Social behaviour: Peaceful, schooling. Males can be somewhat aggressive in pairs, but not when kept in groups with several females.
  • Origin: Tank-bred, but indigenous to Indonesia, New Guinea, and Australia
  • Average adult size: 1.2 - 2 inches (3 - 5 cm)

Selling Size :  ~3cm 


We can’t ship Livestock and Live Plants to WA and TAS due to State Restrictions. Kindly check out our DOA and other policies before purchase!!

Other things to consider before placing an order:

* Check to see if your tank has enough space.
* Ensure your tank is fully cycled.
* Ensure your new livestock is compatible tank mates for any other fish you currently have (in terms of habitat, species, requirements, temperament, and size)
* Ensure that your water parameters, habitat and temperature are suitable for the species you want to introduce.
* Do not stock your tank too quickly, or suddenly a large influx of fish can unbalance your water parameters that will affect the water quality.
* Do not feed your new fish for 24hrs. They need time to settle in and feel at home. Feeding them too quickly puts their health at risk, and it can even affect your water quality. If you have existing fish in your aquarium, feeding them before releasing the new fish is a good idea.
* Don’t be alarmed if, upon arrival, your fish, shrimp or snail look pale or lethargic. This is normal behaviour while in transit, and they should return to full colour and vibrancy after settling into their new home for a few days.

Also, be aware that livestock often gets stress and lose their colours after the long travel to you, this often happened to most livestock ( shrimps, guppies, plecos, and so on, kindly make sure you have the right set up, the aquarium must be fully cycled with the ideal parameters. Fishes and shrimps will often take from 3-7 days to fully adapt to the new home. If you have any concerns with your set up kindly talk to us or check out some online tutorials before purchase.

At Micro Aquatic shop, we strive to provide excellent service and high-quality products, any concerns kindly contact us asap and often we will get back to you in a few hours during working hours. We do not accept claims when the livestock entered your aquarium as there might be so many factors that can affect the wellbeing of the livestock, on our part we can guarantee that we are always sending out healthy and quality fishes and shrimps to you.

Important Reminder:

We are experiencing a high volume of orders, shipments may be delayed by a few days. All orders are processed within 2-3 business days. Orders are not shipped or delivered on weekends or holidays. Please allow additional days in transit for delivery. If there will be a significant delay in the shipment of your order, we will contact you via email.

Your patience and understanding are very much appreciated. Thank you!

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