Western Rainbowfish – Large
This is another rainbowfish from northwestern Australia that has many variations depending on the river in which it is found. One of these varieties was probably the first rainbowfish introduced to the hobby in the 1930s. Our strain comes from the Alligator River in the Northern Territory. It grows to about 3+ inches, is very hardy and is suitable for community and planted aquariums.
| Scientific Name | Melanotaenia australis |
|---|---|
| Family | Melanotaeniidae |
| Origin | Alligator River, Northern Territory, Australia |
| Compatibility with Planted Aquariums | Compatible |
| Care and Handling | Contrary to some popular opinion, these Rainbows are very hardy provided you |
FAQ
What is the typical size of the Western Rainbowfish?
The Western Rainbowfish grows to about 3 inches in length.
Where does this strain originate from?
This strain comes from the Alligator River in the Northern Territory, Australia.
Is this fish suitable for a planted aquarium?
Yes, it is compatible with planted aquariums.

Alan Parr –
The fish arrived healthy and active. They adapted well to my planted tank within a week. Very hardy and colorful, they blend nicely with the live plants. Easy to care for and don’t stress the community fish.
Harry Jackson –
I’ve had these rainbowfish for two months now. They’re peaceful and stay active without causing any issues. The colors are vibrant, especially in the evening light. Good for a community tank.
Brandon Vaughan –
Great addition to my aquarium. They thrive in a planted setup and don’t require much attention. The fish are lively and show natural behavior. Highly recommend for beginners and experienced aquarists alike.