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The oscar (Astronotus ocellatus) is a species of fish from the cichlid family known under a variety of common names, including tiger oscar, velvet cichlid, and marble cichlid. [2] In tropical South America, where the species naturally resides, A. ocellatus specimens are often found for sale as a food fish in the local markets.
Oscar: Astronotus ocellatus: Amazon Basin and The Guianas: 18 inches or 45.72 cm: Moderate, commonly thought to be aggressive, but not really: Midwater: The wild-caught forms of the species are typically darkly coloured with yellow-ringed spots or ocelli on the caudal peduncle and on the dorsal fin.
Piscivorous cichlids eat other fish, fry, larvae, and eggs. Some species eat the offspring of mouthbrooders by head-ramming, wherein the hunter shoves its head into the mouth of a female to expel her young and eat them. [43] Molluscivorous cichlids have several hunting strategies amongst the varieties within the group.
According to FishBase, there are currently sixteen recognized species in this genus, [3] but three very different Middle American taxa ("C." geddesi a synonym of Herichthys deppii, and "C." istlanum and "C." trimaculatum placed in Amphilophus) are not included by Catalog of Fishes, effectively limiting Cichlasoma to a group of rather similar, medium-small cichlids of South America.
The species is endemic to littoral zones on the east, Mozambique coastline of Lake Malawi, south of Chuanga. [3] [4] The species is popular in the fishkeeping hobby and is frequently kept in cichlid aquariums. [5] [6] In the aquarium trade, the fish is known as the bluegray mbuna or the electric blue johanni. [3] [6]
Where established as an introduced species, they may become invasive and damage the ecosystem because of their highly predatory behavior, feeding extensively on smaller native fish. [14] [15] The largest species in the genus, the speckled peacock bass (C. temensis), reaches up to 13 kg (29 lb) in weight and 1 m (3.3 ft) in length, possibly ...
Cichlid breeds Picture Common name Species Lake Size Aggression Level Description Red Zebra: Pseudotropheus estherae: Malawi: 5 inches or 12.7 cm: Moderate: Mbuna: Very common in shops. Strangely, neither red, nor striped Aulonocara fort maguire: Aulonocara hansbaenschi: Malawi: 5 inches or 12.7 cm: Moderate: Utaka: Many variations Yellow Lab ...
Cichla ocellaris, sometimes known as the butterfly peacock bass ("peacock bass" is also used for some of its relatives), is a very large species of cichlid from South America, and a prized game fish. It reaches 74 cm (29 in) in length. [ 3 ]