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EveryFish
Saratoga (Scleropages leichardti) at New York Aquarium

Southern saratoga

A primitive freshwater fish native to Queensland rivers.

Photo: Viktor Kravtchenko, CC BY 3.0, via Wikimedia Commons

The southern saratoga is a carnivorous mouthbrooder found in Australian river systems. It grows up to 90 cm and features distinctive red spots on its scales. This species prefers still waters and is popular in the aquarium trade despite its aggressive nature.

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  • Grows up to 90 cm long and weighs 4 kg
  • Each scale has a single orange or red dot
  • Carnivorous mouthbrooder native to Australia
  • Prefers still waters and shelters in lily pads
  • Listed as near threatened on the IUCN Red List

What it is

This primitive teleost belongs to the arowana group. It has a long body that is strongly compressed from side to side. The back is nearly flat with a dorsal fin positioned far back near the tail. Colours range from dark brown to olive green on top with lighter sides and a white belly. Large bony scales cover the body, each marked with small orange or red dots. Two fleshy barbels sit on the chin below a steeply sloping lower jaw. It is slimmer than its relative the gulf saratoga.

Where it lives

Native populations live in the Fitzroy River system. They are common in freshwater impoundments on the Mary, Dawson and Burnett rivers. Humans have introduced stocks to dams on the Brisbane, North Pine and Noosa Rivers. The fish prefers still waters or slow moving river sections. It often shelters under fallen timber or among lily pads. Its distribution is more restricted than other Australian Scleropages species.

How it lives

These surface dwelling fish are carnivorous and aggressive. They hold territories and will eat other fish, shrimp and yabbies. This behaviour makes them difficult tank mates in community aquariums. They hunt near the water surface using their upward sloping jaws. Their large pectoral fins help them manoeuvre in still waters. They are distinct from the gulf saratoga by having fewer fin rays and a slimmer body profile.

Breeding and life cycle

Like all arowanas, this species is a mouthbrooder. Parents carry eggs and young in their mouths for protection. Sexual maturity occurs at lengths of 48 to 49 centimetres. This reproductive strategy helps ensure survival in their native habitats. The specific timing of spawning events is not detailed in available records.

Southern saratoga
A drawing made by EveryFish from what this page says. It is a diagram, not a picture of the real fish.

Fish and people

Aquarists value this fish for its primitive appearance and spotted scales. It is sometimes called the Australian arowana outside its home range. The name barramundi was once used for it but now refers to Lates calcarifer. It is stocked in several Queensland dams for recreational purposes. While edible, its primary human interaction is through the ornamental fish trade.

Status and threats

The IUCN lists it as Lower Risk or near threatened. It does not appear on any CITES appendices currently. Indonesia protects the species even though it does not occur there naturally. Stocking programmes in Queensland dams help maintain populations. Habitat preference for still waters may limit its spread in fast flowing systems.

Questions people ask about Southern saratoga

How big does the southern saratoga get?

Adults can reach lengths of 90 centimetres and weigh up to 4 kilograms. They usually reach sexual maturity when they are about 48 to 49 centimetres long. This makes them a substantial addition to any large aquarium setup.

What do southern saratoga eat in captivity?

They are carnivorous and will eat other fish, shrimp and yabbies. This aggressive diet means they should not be kept with smaller tank mates. Owners must provide suitable live or frozen meaty foods to keep them healthy.

Where can you find southern saratoga in the wild?

They are native to the Fitzroy River system in Australia. You can also find them in the Mary, Dawson and Burnett rivers. Introduced stocks exist in dams on the Brisbane, North Pine and Noosa Rivers.

How can you tell it apart from the gulf saratoga?

Look at the spots on the scales. Southern saratoga have single red or orange dots on each scale. Gulf saratoga have several reddish spots arranged in a crescent shape. The southern species is also slimmer and lighter.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Southern saratoga", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.

It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

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