Author: Ohara, Mirande & Lima, 2017
Comments: Collected mainly in dammed portions of the rio Braço Norte where it can be considered highly abundant. Appears to be uncommon in the lotic stretch of rio Braço Norte downstream of the dam, where only three specimens were collected. At the type locality (the igarapé do Arnaldo, a small tributary which was flooded during the damming of river), this species was the most abundant comprising 77% of all specimens collected. Found syntopic at Braço Norte reservoir with other species of Characiformes such as <i>Cyphocharax cf. spilurus</i> (Curimatidae), <i>Leporinus friderici</i> (Anostomidae), <i>Serrapinus aff. micropterus</i>, <i>Astyanax aff. bimaculatus</i> (Characidae), <i>Hoplerythrinus unitaeniatus</i> (Erythrinidae), Gymnotiformes like <i>Gymnotus diamantinensis</i> (Gymnotidae), and Cichliformes, i.e., <i>Aequidens</i> sp. and <i>Apistogramma</i> sp. (Cichlidae).  Co-occurs with the following Characiformes: <i>Leporinus desmotes</i> (Anostomidae), <i>Hemiodus quadrimaculatus</i>  (Hemiodontidae), <i>Astyanax aff. bimaculatus</i> , <i>Bryconops</i>  sp., <i>Jupiaba polylepis</i> , <i>Jupiaba paranatinga</i> , <i>Moenkhausia hasemani</i> , <i>Serrapinnus aff. micropterus</i> (Characidae); and with a single species of Siluriformes, <i>Hypostomus</i> sp. (Loricariidae).  Males and females have well-developed gonads during rainy and dry seasons.  Oocytes in varied sizes were present in the gonads, suggesting multiple spawning of females.  Feeds on algae and vegetal matter (Ref. 116744).