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PisciDex Species Profile
Dwarf Neon Rainbowfish
Active smaller rainbowfish with bright iridescent color, best kept in groups with room to swim.
Melanotaenia praecox
Melanotaeniidae | Oceania | Mamberamo River basin, West Papua
Core Requirements
Tank Size
20 gallons minimum
Adult Size
3 inches
Group Size
Group 6+
Bioload
3/10
Water Parameters
Temperature
72-82 F
pH
6-8
Plant Safe
Yes
Invert Safe
Yes
Data Confidence
Unknown
Behavior & Husbandry
Temperament
Peaceful
Aggression
2/10
Diet
Omnivore
Difficulty
Easy
Lifespan
5 years
Breeding
Easy
Schooling
Yes
Compatibility Tags
CommunityPeacefulSchoolingMid WaterTop WaterPlant SafeInvert SafeBeginner Friendly
Species Compatibility
Database-driven compatibility notes for planning community aquariums.