HomeFreshwater aquarium fishTetras & characinsBarnard's robber Barnard's robber (Hemigrammopetersius barnardi) Scientific name: Hemigrammopetersius barnardi Herre, 1936 The Barnard's robber (Hemigrammopetersius barnardi) is a freshwater fish of the family Alestidae. In the aquarium it needs water at 24–27°C (75–81°F). Native range: Africa, Lower Zambezi, Pungwe and Buzi systems. Also upper Shire and Lakes Malawi, Chilwa and Chiuta. Also Lake Nyasa basin: Rovuma and Rufiji. Barnard's robber care at a glanceTemperature24–27°C (75–81°F) BiologyShoals in marginal vegetation of rivers and lakes. Feeds on small insects and invertebrates.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHemigrammopetersius barnardiFamilyAlestidae (African tetras)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length7.0EnvironmentFreshwater; pelagicClimateTropicalDistributionAfrica: Lower Zambezi, Pungwe and Buzi systems. Also upper Shire and Lakes Malawi, Chilwa and Chiuta. Also Lake Nyasa basin: Rovuma and Rufiji.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: potentialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More tetras & characinsMarbled headstanderAbramites hypselonotusStriped headstanderAnostomus anostomusOneline pencilfishNannostomus unifasciatusBarred pencilfishNannostomus espeiGolden pencilfishNannostomus beckfordiRedspotted tetraCopeina guttataSee all tetras & characins SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026