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 rainbow, blue body with red fins.
Photo: Raimond Spekking / Wikimedia Commons · Source · CC-BY-SA-4.0