Dwarf Neon Rainbowfish (Melanotaenia praecox)

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Dwarf Neon Rainbowfish

Melanotaenia praecox1.jpg
Dwarf Neon Rainbowfish

Melanotaenia praecox

76 Litres (20 US G.)

3.8-5.1cm (1.5-2 ")




6.5 - 7.5

23.9-26.1°C (75 -79 °F)

6-13 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods

3-4 years



This animal is available captive bred

Additional names

Praecox Rainbow, Neon Rainbowfish, Dwarf Rainbowfish, Dwarf Neon Rainbowfish, Neon Dwarf Rainbowfish

Additional scientific names

Rhombatractus praecox

Sexing[edit | edit source]

Males are more brilliant and have more red in their fins, particularly the dorsal. Large males may develop a humpback as they mature. Females have more brown in their scales, whereas males are silver-blue.

Tank compatibility[edit | edit source]

A peaceful sociable fish that should be kept in shoals of 6 or more, at least 2 females per male. Do not keep with long-finned fish, will otherwise cohabit happily with other peaceful community fish.

Diet[edit | edit source]

Will accept most foods including pellets and flake as well as live food like bloodworm and daphnia.

Feeding regime[edit | edit source]

Feed once or twice a day.

Environment specifics[edit | edit source]

Lightly planted tank. They are fast-swimming and truthfully do better in 100 Litres (26.4US G.)+. Expert jumpers, they do best in a community tank of a large school. Potential fin nippers if only because they are so fast!

Behaviour[edit | edit source]

Prefers the company of others. Keep in a shoal.

Identification[edit | edit source]

Typical Rainbowfish body shape, but substantially smaller than other Rainbowfish. Has an exceptionally deep body for such a small fish. Dorsal, anal, and caudal fins are all a rich red in colour, the body is iridescent silver with blue hues.

Pictures[edit | edit source]

Videos[edit | edit source]

In a shop tank:

External links[edit | edit source]