Inhabits shallow marginal areas, with abundant aquatic macrophytes, both emergent and non-emergent (Ref. 81198). Gut contents of four specimens include insect larvae, winged insects and plant matter (Ref. 81198).
- Lima, F.C.T., W.B. Wosiacki and C.S. Ramos 2009 Hemigrammus arua, a new species of characid (Characiformes: Characidae) from the lower Amazon, Brazil. Neotrop. Ichthyol. 7(2):153-160. (Ref. 81198) http://www.fishbase.org/references/FBRefSummary.php?id=81198&speccode=64953
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