Southern Pygmy Perch

About the Southern Pygmy Perch

The Southern Pygmy Perch is a fascinating Australian native freshwater fish, prized for its compact size, inquisitive personality, and beautiful natural colouration. Found throughout southeastern Australia, this small perch displays subtle olive, bronze, and golden tones with delicate dark markings that provide excellent camouflage amongst aquatic plants and submerged timber.

Despite its name, the Southern Pygmy Perch is peaceful and well suited to native species aquariums and cool-water community setups. They are curious fish that spend much of their time exploring vegetation, driftwood, and rocky habitats in search of small invertebrates. Their natural behaviour makes them an engaging species to observe.

Southern Pygmy Perch thrive in heavily planted aquariums with plenty of hiding places and gentle water movement. They appreciate stable water conditions and a varied diet consisting of quality micro pellets, frozen foods, live foods, and small crustaceans. They can be maintained in small groups and are an excellent choice for aquarists interested in keeping Australian native fish.

Quick Care Guide

Scientific Name

Nannoperca australis

Common Name

Southern Pygmy Perch

Origin

Southeastern Australia

Adult Size

6–8 cm

Temperament

Peaceful

Diet

Carnivore

Minimum Tank Size

60 Litres

Temperature

16–24°C

pH

6.5–8.0

Water Hardness

4–20 dGH

Difficulty

Intermediate

Lifespan

4–6 Years

Suitable For

Australian native aquariums and cool-water community tanks

Frequently Asked Questions

Are Southern Pygmy Perch suitable for beginners?

They are best suited to aquarists with some experience, as they prefer stable water conditions and benefit from a varied, protein-rich diet.

What do Southern Pygmy Perch eat?

They primarily feed on small aquatic insects, crustaceans, worms, frozen foods, live foods, and quality sinking micro pellets.

Can Southern Pygmy Perch live with shrimp?

Larger shrimp may coexist successfully, but smaller shrimp and shrimplets are likely to be eaten.

Do Southern Pygmy Perch need a heater?

Not always. They naturally inhabit cooler waterways and generally thrive between 16°C and 24°C, depending on your local climate.

Are Southern Pygmy Perch aggressive?

No. They are generally peaceful, although they may consume very small fish or invertebrates that fit into their mouths.

Common Mistakes

Keeping them in tropical temperatures year-round

Southern Pygmy Perch naturally prefer cooler water than many tropical aquarium fish.

Providing too few hiding places

Dense plants, rocks, and driftwood help reduce stress and encourage natural behaviour.

Feeding only dry foods

A varied diet including frozen and live foods promotes excellent health and natural colouration.

Housing them with large predatory fish

Choose peaceful tank mates that won't outcompete or prey upon them.

Poor water quality

Regular maintenance and stable water parameters are essential for keeping this Australian native healthy.