Cichlid


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Oscar Cichlids

Astrontus ocellatus

Angelfish aside, the most recognisable cichlid to the non-fishkeeping public is probably the oscar fish. (Astronotus sp.).

Oscars are amongst the most pet-like of cichlids, some recognise their owners and allegedly develop almost “pet-like” attachment to some feeder-fish (while eating all others of similar size) or other heterospecific tank mates. They are best kept individually, or if tank size permits in pairs.

They are relatively undemanding to keep, though require clean, well-filtered (they are VERY messy eaters) aquarium water, with pH 6.5 - 7.5. Because of this messy feeding, frequent water changes are often required. Oscars are greedy and predatory, eating most anything which is regarded as prey-sized, but less-frequently territorial than other large south or central american cichlids.


A group of wildcaught Astrontus ocellatus from Columbia.







Species tanks are best furnished with one large hiding place for each oscar present, preferrably concealed from the view of the other hiding place, if more than one fish is present. Good tankmates include plecos, silver dollars and other larger non-aggressive species. Oscars do not eat plants, however, they will uproot most plants, if plants are required pots filled with large heavy pebbles can be used to weight down Spathiphyllum (Madonna lilly) plantlets (you can buy these at most K-mart, Big W, Bunnings or your local nursery).


An albino oscar.

Breeding is challenging and erratic, breeding pairs are best obtained by growing a group of individuals to adulthood and removing the remaining fish once a pair form.

Unlike most larger cichlids, oscars are on the allowable ornmental fish import list for Australia.

We Recommend This Oscar Cich;lid Article From Our Partner Site

Learn more about your Oscar fish

Also See These Oscar Cichlid Articles

Detailed description of oscars
More about Astronotus ocellatus
Further Astronotus ocellatus info

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