Neon Dwarf Rainbowfish
Melanotaenia praecox
Also known as: Neon Dwarf Rainbowfish, Dwarf Neon Rainbowfish, Praecox Rainbowfish
Origin: Indonesia (West Papua, Mamberamo River)
Water Parameters
Quick Stats
- Max Size
- 6 cm
- Min Tank
- 60 L
- Lifespan
- 3-5
- Swimming Level
- middle
- Schooling
- Yes (6–12+)
- Diet
- omnivore
- Temperament
- peaceful, active schooling fish
About
Native to the lowland rivers of the Mamberamo basin in West Papua, Melanotaenia praecox is the most popular dwarf rainbowfish in the hobby. Males develop intense neon-blue flanks and bright red-orange fins, while females display yellow-tinted fins against a silver-blue body. A fast-moving, active schooler that does best in groups of six or more.
Care Guide
Water: 22–28°C, pH 6.5–8.0, soft to moderately hard water. Tank: 60 L+, planted with open swimming space and good water movement. Feeding: Omnivore; micro-pellets, fine flakes, and small frozen foods such as baby brine shrimp. Behaviour: Active and peaceful; males display vivid colour when kept in mixed-sex groups. Compatibility: Ideal with other small peaceful fish; avoid large boisterous tankmates.
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