Lake Kurumoi Rainbowfish – Melanotaenia parva
The Lake Kurumoi Rainbowfish (Melanotaenia parva) is one of the most stunningly coloured rainbowfish in the hobby. Males develop an intensely deep scarlet-red body with beautifully detailed dark scale edges creating a striking crosshatch pattern. Females are an elegant silvery-grey, providing a beautiful contrast when kept together.
Why Choose the Lake Kurumoi Rainbowfish?
- Breathtaking Red Colour: Males develop one of the deepest, most vivid reds of any freshwater fish – an absolute showstopper
- Rare & Sought-After: Seldom seen in the UK hobby – a real collector’s rainbowfish
- Peaceful & Active: Lively swimmers that add constant movement and colour to your aquarium
- Hardy & Adaptable: Easy to keep once established, suitable for intermediate fishkeepers
- Stunning in Groups: Males display even more intense colour when competing for female attention
Care Guide – Lake Kurumoi Rainbowfish
| Scientific Name | Melanotaenia parva |
| Common Names | Lake Kurumoi Rainbowfish, Kurumoi Rainbowfish, Parva Rainbowfish |
| Origin | Lake Kurumoi, West Papua, Indonesia |
| Adult Size | 6–8cm (2.5–3 inches) |
| Temperament | Peaceful – active schooling fish, keep in groups of 6+ |
| Diet | Omnivore – flakes, pellets, frozen bloodworms, brine shrimp, daphnia |
| Temperature | 24–28°C (75–82°F) |
| pH | 6.5–8.0 |
| Water Hardness | Moderate (8–15 dGH) |
| Minimum Tank Size | 100 litres (25 gallons) for a group |
| Difficulty | Easy to Intermediate |
| Lifespan | 5–8 years |
Tank Setup & Compatibility
Provide a spacious, well-planted aquarium with open swimming areas and moderate water flow. A dark substrate enhances their vibrant red colouration. Good filtration and regular water changes keep these fish at their best.
Suitable tank mates: Other rainbowfish, peaceful tetras, barbs, Corydoras catfish, loaches, and other community fish of similar size. Best kept in a ratio of 2–3 females per male.
Sexual Dimorphism
Males are significantly more colourful with deep scarlet-red bodies and more intense finnage. Females are silvery-grey with subtle hints of colour. Males colour up even more when displaying to females or competing with other males.
Why Buy From Aquatropics?
At Aquatropics, we source only the finest quality live tropical fish, carefully selected for health, colour, and condition. All fish are quarantined and inspected before dispatch. We offer next-day delivery across the UK using specialist fish packaging.
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