Crenicichla is a genus of cichlids native to South America commonly known as the pike cichlids. They are found in most tropical and sub-tropical freshwater habitats between the Andes and the Atlantic.
The smallest species of Crenicichla (notably members of the C. wallacii species group) are no larger than 6–14 cm (2.4–5.5 in), and technically qualify as "dwarf cichlids" for the aquarium hobby – though their aggressive and voracious habits should let prospective keepers beware. The biggest pike cichlids can grow to about 50 cm (20 in) long.
[Most Crenicichla measure in the range of 15–30 cm (6–12 in).Like many other predatory fishes, a pike cichlid has a wide mouth and elongated body.
The vast majority of pike cichlids are predatory and feed on fish, insects, and other small animals. They usually place themselves where they can stay undetected by the prey, like close to a sunken tree stem or behind a rock. This behavior, as well as the correspondingly adapted shape, which resembles that the unrelated pikes (Esocidae) of the Holarctic, gives the pike cichlids their common name.
There are currently around 93 recognized species in this genus. Wikipedia
Crenicichla saxatilis, the ring tailed pike cichlid, is a species of cichlid native to South America. It is found swimming in the Atlantic coast drainages of Suriname, French Guiana, Guyana, Venezuela and Trinidad. This species reaches a length of 20 cm (7.9 in).
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