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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.
Astronotus is a genus of South American fish from the family Cichlidae.There are two commonly recognized species in the genus (listed below), though genetic evidence suggests that additional species exist; several of these possibly distinct populations also have very different juvenile coloration from the two recognized species.
A leucistic long-finned form of the oscar, A. ocellatus. Numerous cichlid species have been selectively bred to develop ornamental aquarium strains. The most intensive programs have involved angelfish and discus, and many mutations that affect both coloration and fins are known.
Unlike its close relative Parachromis managuensis, P. motaguensis isn't as commonly encountered in the aquarium trade. Although their visual appearance is very similar, the motaguensis (traded by many names, including Red tiger, Red dragon cichlid) displays an array of bright red dots, (hence the variants of the common name), which run along the flanks to the base of the caudal fin.
The name "tigerfish" has occasionally been used for a species of cichlid in the genus Rhamphochromis. The species is large, silver-coloured, and individuals typically have one or more black lines running the length of either flank. These fish are native to Lake Malawi in Africa. Like the other African tigerfish species, they are famed for ...
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 making it the largest species of cichlid [16] (others suggest that record goes to the African giant cichlid, Boulengerochromis microlepis). [17] Other peacock bass species are smaller. [18]
Although less popular than its close relative Mikrogeophagus ramirezi, the Bolivian ram remains a commonly encountered cichlid for the aquarium. [4] The species is also more tolerant of lower temperatures (22–26 °C (72–79 °F)) and a greater range of water conditions than M. ramirezi. [9]
The Blood Parrot Cichlid (Amphilophus citrinellus × Vieja melanurus), or parrot cichlid, is a hybrid species of fish in the family Cichlidae. [1] The fish was first bred in Taiwan around 1986. [ 2 ] [ 3 ] Blood parrots should not be confused with other parrot cichlids or salt water parrotfish (family Scaridae). [ 4 ]