Facultative air-breathing in the genus ; Occurs in river with brown muddy and medium to fast flowing water over a sandy bottom . Its habitat has little or no marginal vegetation, mainly formed by grass or bushes .
Dorsal soft rays (total): 8; Anal soft rays: 6; Vertebrae: 32. : elongated.
Behavioural data for Rineloricaria Maacki is currently being reviewed.
Freshwater; demersal. Tropical South America: Rio Iguaçu of the rio Paraná basin in Brazil.
The following diseases are known to affect Rineloricaria Maacki.
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