Southern Pygmy Perch

Nannoperca australis
Southern Pygmy Perch - Marinewise © 2024 MarineWise

Quick Facts

Scientific name Nannoperca australis
Other names Tasmanian Pigmy Perch
Size Up to 10 cm (3.93 in)
Weight A few grams


Habitat & AU Distribution Freshwater ponds, lakes, dams, streams & creeks amongst aquatic vegetation
Depth Range 1 - 2 m (6 ft)
Southern Pygmy Perch Distribution

Interesting Info

  • The Southern Pygmy Perch is a small freshwater fish native to southern Australia, including Victoria, New South Wales, South Australia, and Tasmania.
  • They are typically found in slow-moving streams, ponds, and wetlands with abundant vegetation.
  • The Southern Pygmy Perch is a sexually dimorphic species, meaning that males and females have different physical characteristics. Males are generally more colorful than females, with bright blue and orange markings on their fins.
  • They are omnivorous and feed on a variety of small aquatic invertebrates, algae, and plant matter.
  • They are considered a threatened species due to habitat loss, degradation, and fragmentation and are listed as ‘Vulnerable’ under the Australian Commonwealth Government’s Environment Protection and Biodiversity Conservation Act 1999.
  • They are also listed as ‘Endangered’ in the state of Victoria and ‘Threatened’ in South Australia.
  • Southern Pygmy Perch have been successfully bred in captivity, and these populations have been used to reintroduce the species to areas where it has become locally extinct.
  • Southern Pygmy Perch have a relatively short lifespan, living for about 2-3 years in the wild.
Species Interaction

Aquarium Fish

Southern Pygmy Perch can be a good choice for a native fish in an aquarium, as they are small, easy to care for, and relatively hardy. However, it’s important to keep in mind that they are a threatened species in the wild, so it’s important to source them from ethical and sustainable suppliers to avoid contributing to the decline of wild populations.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Perciformes

Family: Percichthyidae

Genus: Nannoperca

Species: Nannoperca australis

Conservation Status

Southern Pygmy Perch is listed as a threatened species in Australia. The conservation status of the species varies depending on the state, with the species listed as: Endangered in Victoria, Vulnerable in New South Wales & South Australia, Endangered in Tasmania

Southern Pygmy Perch
As Aquarium Fish

Care Level: Easy

Temperament: Peaceful

Diet: Omnivore

Reef Compatible: No

Minimum Tank Size: 10 gallons

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