Blue Rainbowfish (Melanotaenia lacustris)

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Blue Rainbowfish

Melanotaenia lacustris-4948.jpg
Blue Rainbowfish

Melanotaenia lacustris

170 Litres (45 US G.)

10.2-12.7cm (4-5 ")




7.0 - 8.0

20 -24 °C (68-75.2°F)

9-12 °d

1:2 M:F

Pellet Foods
Flake Foods
Live Foods

5-8 years



This animal is available captive bred

Additional names

Blue Rainbowfish, Lake Kutubu Rainbowfish, Turquoise Rainbowfish

Sexing[edit | edit source]

It is not easy to sex this fish, occasionally the male will be slightly more vivid in colour and when mature, the male's body is slightly deeper. Both males and females will display, but females less often.

Tank compatibility[edit | edit source]

Can be kept with similar sized peaceful community fish. Keep this fish in groups of 5 or more.

Diet[edit | edit source]

Will accept most foods including pellet and flake as well as live/frozen foods such as bloodworm and brine shrimp.

Feeding regime[edit | edit source]

Feed once or twice a day.

Environment specifics[edit | edit source]

Requires a spacious and laterally long tank as these fish are active swimmers.

Behaviour[edit | edit source]

A peaceful active shoaling fish.

Identification[edit | edit source]

This Rainbowfish has the typical deep-bodied, high-backed and laterally compressed body shape. It has a dark lateral line and the rest of the body is a rich iridescent turquoise colour, the belly being more yellow.

Pictures[edit | edit source]

Videos[edit | edit source]


External links[edit | edit source]