Species Profile
Neon Dwarf Rainbowfish
Melanotaenia praecox
Rainbowfishpeaceful
Adult size
2.5″
Minimum tank
20 gal
Temperature
72–82°F
pH
6.5–7.5
Schooling
Group of 6+
Water level
mid
Diet
Flake, pellets, frozen
Notes
Smaller blue-bodied rainbow with red fins, only 2.5″ adult. Easier to fit in standard community tanks than the larger Australian species. Group of 6+ keeps the males displaying their color; lone individuals fade.
Photo: Raimond Spekking / Wikimedia Commons · Source · CC-BY-SA-4.0