Oscar Fish for Sale in Australia

Choosing an Oscar Fish

Oscar fish are colour varieties of Astronotus ocellatus. Names such as Tiger, Red, Albino and Lemon describe appearance rather than separate care requirements. Individual colour and markings can change as the fish grows.

Browse our complete American Cichlid range when comparing Oscars with other large cichlids.

Adult Size and Aquarium Requirements

Juvenile Oscars grow quickly and commonly reach around 30 centimetres as adults. A single adult generally requires a large aquarium, commonly around 300 litres or more depending on dimensions, filtration and layout. More fish require considerably more room.

Choose from our aquariums and fish tanks with enough length, width and water volume for the adult fish. A secure lid is important because large cichlids can jump or dislodge equipment.

Filtration for Oscar Fish

Oscars eat substantial food and produce substantial waste. Strong biological and mechanical aquarium filtration, regular maintenance and consistent water testing are essential. Size the filter for the actual stocking and waste load rather than relying only on the aquarium volume printed on the box.

Oscar Behaviour and Tank Mates

Oscars are intelligent and can become responsive to their keeper, but they remain large predatory cichlids. Small fish may be eaten and similarly sized fish can still be bullied. Compatibility depends on individual temperament, aquarium dimensions and available territories.

Feeding Oscar Fish

Use a quality pellet formulated for large cichlids as the staple diet. Supplement with suitable insects, crustaceans and approved frozen foods. Avoid mammalian meat and routine feeder fish, which can create nutritional or disease risks.

Oscar Fish on the Sunshine Coast

Aquaholics stocks Oscar Cichlids in changing colours and sizes from our Baringa aquarium store on the Sunshine Coast. Check current product listings for available varieties and sale sizes.

Frequently Asked Questions

How large do Oscar fish grow?

Oscar fish commonly reach around 30 centimetres in aquariums and some individuals can grow larger. Their aquarium, filtration and tank mates must be planned around adult size.

What size aquarium does an Oscar need?

A single adult Oscar generally needs a large aquarium with substantial swimming room, commonly around 300 litres or more depending on tank dimensions and setup. Pairs or additional large fish require considerably more space.

Can Oscars live with other fish?

Sometimes, but Oscars can eat smaller fish and may be territorial. Any companions must be large enough not to be swallowed, compatible in temperament and supported by a substantially larger aquarium.

What do Oscar fish eat?

Oscars are omnivorous predators. Feed a quality large-cichlid pellet as the staple diet, supplemented with suitable foods such as insects, crustaceans or approved frozen foods. Avoid routine feeder fish because of disease and nutritional risks.

How long do Oscar fish live?

With suitable care, Oscar fish can live for ten years or longer. Buying one is a long-term commitment to a large aquarium and ongoing filtration and maintenance.