Skip to content
Murray River Rainbowfish, photographed on a transparent background
Photo: Jennifer Horn (Jlahorn) · Public domain

FreshwaterComing soonUncommon

Murray River Rainbowfish

Melanotaenia fluviatilis

The Murray River Rainbowfish (Melanotaenia fluviatilis) is a tropical freshwater fish of the family Melanotaeniidae. It swims in midwater, close to the bottom. It grows to 11 cm (standard length, tail fin excluded). The IUCN Red List rates it Least Concern. In the aquarium it is kept at 20–25 °C.

Size
11 cmstandard length, tail fin excluded
Temperature
20–25 °C
pH
6.5–8.0
Tank footprint
90 × 30 cm

In the aquarium

Temperature20–25 °C
pH6.5–8.0
Hardness8–20 °dGH
Drawn to scale in a 90 cm tank

In the wild

Water type
Freshwater
Climate zone
Tropical
Habitat
Midwater, close to the bottom
Aquarium trade
Rarely traded

Conservation status

Classification

  1. OrderAtheriniformes
  2. FamilyMelanotaeniidae
  3. GenusMelanotaenia
  4. SpeciesMelanotaenia fluviatilis

Quick answers

Murray River Rainbowfish size: how big does it get?
It grows to 11 cm (standard length, tail fin excluded).
Murray River Rainbowfish tank size: what is the minimum?
A tank with a footprint of at least 90 × 30 cm.
Murray River Rainbowfish water parameters: what does it need?
Temperature 20–25 °C, pH 6.5–8.0, hardness 8–20 °dGH.
Murray River Rainbowfish: is it endangered?
The IUCN Red List rates it Least Concern.

All species A–Z

Sources

The figures on this page are compiled from the references below.