Blyth River Banded Rainbowfish
A regional form of the banded rainbowfish with a strong dark lateral band and warm gold-orange flanks. Collected populations are kept separate in the hobby, so the location name matters.
Feeding
Flake, micro-pellets and frozen daphnia, bloodworm and brine shrimp. Feeds mainly in the upper half of the tank and takes food readily.
Compatibility
Peaceful but fast and active. Keep in groups of six or more with a mix of sexes. Best with other rainbowfish, larger tetras and barbs rather than slow or long-finned species.
Behaviour and Personality
Powerful, constantly moving swimmers. Males display hard to one another and to females, flaring fins and flashing a bright stripe across the forehead.
Before You Buy
Juveniles in shop tanks may look washed out; they develop their full coloration over time in proper conditions.
| Feature | Detail |
|---|---|
| Species | Banded Rainbowfish (Blyth River form) |
| Size | Up to 5 cm (2 inches) |
| Temperament | Peaceful, active, social |
| Group Size | 6 or more (mix of sexes) |
| Water Conditions | Warm, soft to moderately hard, pH 6.0–7.5 |
FAQ
What is the difference between Blyth River Banded Rainbowfish and other rainbowfish varieties?
The Blyth River form has a distinct strong dark lateral band and warm gold-orange flanks. It is a regional variant collected separately in the hobby, so location matters for accurate identification.
How should I feed the Blyth River Banded Rainbowfish?
Feed flake, micro-pellets, and frozen foods like daphnia, bloodworm, or brine shrimp. They feed in the upper half of the tank and take food readily.
What tank mates are suitable for this fish?
Best kept with other rainbowfish, larger tetras, and barbs. Avoid slow-moving or long-finned species that may be outpaced or stressed.

Lillian Graham –
The fish are very active and colorful once they settle in. I kept them in a 60-liter tank with other rainbowfish and tetras. They show off their bright stripes during the day, especially when males are near each other. The coloration develops well after a few weeks.
Vanessa Hodges –
They are lively and easy to care for. I feed them a mix of flakes and frozen daphnia daily. They stay in the upper part of the tank and don’t hide much. A bit of space is needed due to their active swimming.
Madeleine Fisher –
The Blyth River variety stands out with its dark band and golden flanks. I noticed the males flash their stripes when they’re near each other. They thrive in a well-maintained, warm tank with good water flow.