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.
Compatible Tankmates
Best tank mates for Neon Dwarf Rainbowfish
Every species below passes the compatibility engine when paired with Neon Dwarf Rainbowfishin a suitably sized tank. Verdicts come from the same rules the builder uses — click a card to see that species' own care profile and its tank mates in turn.
Pearl Gourami
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Bolivian Ram
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Angelfish
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Bristlenose Pleco
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Zebra Loach
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Yoyo Loach
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Buenos Aires Tetra
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Three-Spot Gourami
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Keyhole Cichlid
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Electric Blue Acara
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Pictus Catfish
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Clown Loach
ExcellentPeaceful pairing — temperament, water parameters, and size all line up.
Photo: Raimond Spekking / Wikimedia Commons · Source · CC-BY-SA-4.0