New Guinea Rainbowfish tank size: what is the minimum?

A tank with a footprint of at least 120 × 30 cm.

Photo: LucasWhiteford6958 · CC BY-SA 4.0

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New Guinea Rainbowfish

Melanotaenia affinis

The New Guinea Rainbowfish (Melanotaenia affinis) is a tropical freshwater fish of the family Melanotaeniidae. It swims in midwater, close to the bottom. It grows to 11.5 cm (standard length, tail fin excluded). The IUCN Red List rates it Least Concern. In the aquarium it is kept at 20–30 °C.

Size: 11.5 cmstandard length, tail fin excluded
Temperature: 20–30 °C
pH: 6.5–8.0
Tank footprint: 120 × 30 cm

In the aquarium

Temperature20–30 °C

pH6.5–8.0

Hardness8–20 °dGH

In the wild

Water type: Freshwater
Climate zone: Tropical
Habitat: Midwater, close to the bottom
Aquarium trade: Traded commercially

Conservation status

Classification

OrderAtheriniformes
FamilyMelanotaeniidae
GenusMelanotaenia
SpeciesMelanotaenia affinis

Quick answers

New Guinea Rainbowfish size: how big does it get?: It grows to 11.5 cm (standard length, tail fin excluded).
New Guinea Rainbowfish tank size: what is the minimum?: A tank with a footprint of at least 120 × 30 cm.
New Guinea Rainbowfish water parameters: what does it need?: Temperature 20–30 °C, pH 6.5–8.0, hardness 8–20 °dGH.
New Guinea Rainbowfish: is it endangered?: The IUCN Red List rates it Least Concern.