Western Rainbowfish (Melanotaenia australis)
One of the more popular Australian rainbowfish in the hobby, known for bold colours, sharp stripes, and high activity levels. They add vibrant energy to mid-sized or larger community aquariums.
These are juvenile fish, approximately 2 to 2.5 inches in length.
| Feature | Detail |
|---|---|
| Species | Melanotaenia australis |
| Size (juvenile) | 2-2.5 inches |
| Group Size Recommendation | 3 or more fish |
| Activity Level | High |
FAQ
What is the ideal group size for Western Rainbowfish?
A group of three or more is strongly recommended for optimal behaviour and well-being.
How big do Western Rainbowfish grow?
Juveniles in this product are around 2 to 2.5 inches long. Full adult size may reach up to 3 inches over time.
Are Western Rainbowfish suitable for community tanks?
Yes, they are well-suited for mid-sized to larger community tanks when kept in groups.
Jan MacDonald –
The fish are very active and colorful, adding a lot of life to my 30-gallon tank. I kept them in a group of four and they seem to get along well. The colors are vibrant and stand out in the water.
Kylie James –
Great addition to my community tank. They swim actively and look stunning. I bought three juveniles and they’ve grown nicely over the past month. Just make sure to keep them in a group.
Julian MacLeod –
Highly recommended for anyone looking for lively, colorful fish. The Western Rainbowfish are easy to care for and bring a lot of energy to the tank. I’ve had them for six weeks and they’re still active and healthy.