Characidium Borellii (Characidium borellii), first described by Boulenger, 1895 is a small fish in the family Crenuchidae (order Characiformes). Adults typically reach 6.60 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Crenuchidae kept in the hobby.
Dorsal spines (total): 2; Dorsal soft rays (total): 8; Anal spines: 2; Anal soft rays: 7; Vertebrae: 37. A generalized Characidium with the isthmus scaly and the breast rounded, iii external pectoral rays and i external pelvic ray, the eye only slightly oblique, the lateral line complete and the adipose fin present; zebra-like color pattern; characterized by only ii,8 dorsal rays and few (5/5) teeth on both jaws, essentially conical, with apex of the mandibulary teeth somewhat enlarged, triangular, and probably no second mandibulary row and no pterygoid teeth. 'Spines' refer to unbranched rays.: fusiform / normal; Cross section: circular.
Behavioural data for Characidium Borellii is currently being reviewed.
Freshwater; benthopelagic. Tropical South America: Andean tributaries of Paraná River basin in northwestern Argentina.
The following diseases are known to affect Characidium Borellii.
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