Blyth River Rainbowfish (Melanotaenia trifasciata)
Blyth River rainbows (Melanotaenia trifasciata) are native to the Northern Territory of Australia. They are closely related to the Goyder River strain, sharing the same water system. However, Goyder River collection is prohibited due to protected status within a national park. This strain was distributed by Gary Lange.
The photo without our logo is credited to Jimmy Walker and showcases the intense red coloration in the fins under optimal conditions.
These fish are omnivorous and thrive on a high-quality flake food supplemented with proteins like baby brine shrimp. They prefer clean water and are tolerant of a wide range of water parameters. Regular water changes encourage frequent spawning attempts.
| Species | Melanotaenia trifasciata |
|---|---|
| Origin | Northern Territory, Australia |
| Diet | Omnivorous (flakes + baby brine shrimp) |
| Water Tolerance | Wide range of parameters |
| Spawning | Frequent with regular water changes |
FAQ
What is the difference between Blyth River and Goyder River rainbowfish?
Blyth River and Goyder River rainbowfish are closely related and from the same water system. The Goyder River strain is protected within a national park, making collection illegal. Blyth River fish are available through legal distribution channels and are similar in appearance, though they may display more intense red fin coloration.
Do these fish require special water conditions?
No, Blyth River rainbowfish tolerate a wide range of water parameters. They do best in clean water, and regular water changes are recommended to maintain water quality and encourage spawning.
What should I feed my Blyth River rainbowfish?
Feed a high-quality flake food as the base diet, supplemented with protein sources such as baby brine shrimp to support their omnivorous needs.
Kimberly Reid –
The fish are active and colorful, showing vibrant red fins after a few weeks. I feed them flakes and a few brine shrimp each day. Water changes every two weeks keep the tank clean and they spawn regularly. Easy to care for and very lively in a community tank.
Joe Grant –
They look striking with their bright red fins. I noticed the color deepens when the water is well-maintained. Feeding with flake and occasional brine shrimp keeps them healthy. A bit shy at first, but they settle in quickly.
Jennifer McDonald –
Great addition to a tropical community tank. They are peaceful and don’t compete aggressively. The spawning behavior is noticeable after consistent water changes. Very satisfied with the color and activity level.