Catalog / fish / Bleher's rainbowfish
fish · Melanotaeniidae
Bleher's rainbowfish
Chilatherina bleheri
Wild range: New Guinea (Australia)

At a glance: Bleher's rainbowfish care
Compiled reference information. Review the care notes and original sources below.
What temperature is listed for Bleher's rainbowfish?
The compiled profile lists 23.0–28.0 °C for Bleher's rainbowfish (Chilatherina bleheri). Check the original sources below for context and differing recommendations.
What tank size is listed for Bleher's rainbowfish?
The profile lists a minimum tank volume of 26.4 US gallons (100.0 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.
What pH is listed for Bleher's rainbowfish?
The compiled profile lists a pH of 6.0–7.8. Review the cited care sources alongside the other water parameters in this profile.
Natural habitat
Chilatherina bleheri, commonly known as Bleher's Rainbowfish, is native to the freshwater streams and rivers of New Guinea. It is often found in areas with abundant vegetation, which provides cover and breeding sites. This species prefers slightly shaded habitats with slow-flowing waters, making it an ideal addition to planted aquarium setups.
Where they are found
The species thrives in areas with abundant shoreline vegetation and submerged wood, typical of the foothill jungle environment.
Aquarium care
In an aquarium, Bleher's Rainbowfish requires ample swimming space and well-planted areas to mimic their natural habitat. A gentle filtration system is essential to maintain water quality without creating strong currents. Regular water changes and a varied diet will promote health and coloration.
Feeding
Feed a varied diet including high-quality flakes and micro-pellets supplemented with live foods such as daphnia and bloodworms to enhance coloration and health.
Compatibility
Ideal tankmates include peaceful community species such as other rainbowfish, corydoras, and small calm tetras. They should be kept in groups of 6 or more for social stability.
Breeding
Breeding Chilatherina bleheri is relatively straightforward in aquarium settings. They are egg-layers, and providing dense vegetation or spawning mops will help induce breeding. The female will scatter eggs among the plants, which should be removed after spawning to prevent parents from eating them.
Sources
Compiled from multiple independent care sheets — not copied from a single site.