Franco Banfi / Piraputanga fish (Brycon hilarii) split level, in the main spring at Rio Sucuri, Bonito, Mato Grosso do Sul, Brazil.

Angelo Gandolfi / Piraputangas (Brycon hilarii) reflected in the surface of the water, Bonito, Mato Grosso do Sul, Brazil.

Angelo Gandolfi / Snorkeller with shoal of Piraputanga (Brycon hilarii), Rio Olha d'Agua at Cabeceira do Prata, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi,Franco Banfi / Piraputanga (Brycon hilarii) in the main spring Aquario Natural that goes in the Rio Baia Bonita, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi / Piraputanga (Brycon hilarii) reflecting on the water surface, Aquirio Natural, Bonito, Mato Grosso do Sul, Brazil

Michel Roggo / Matrincha (Brycon sp.) in flooded forest, waiting on surface for insects. Rio Tabajos, Amazon, Brazil.

Luciano Candisani / Piraputanga (Brycon hilarii) schooling in clear water stream, Cerrado Ecosystem, Bodoquena Plateau, Brazil

Peter Scoones / Dorado (Salminus maxillosus) amongst Piraputangas (Brycon microlepis) Pantanal, Brazil. photographed during making of BBC Planet Earth series 2005

Peter Scoones / Piraputangas (Brycon microlepis / hilarii) Pantanal wetlands, Brazil. photographed during making of BBC Planet Earth series 2005

Franco Banfi / Freshwater dorado, (Salminus brasiliensis) and Piraputanga, (Brycon hilarii), Recanto Ecologico, Rio da Prata, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi / Shoal of Piraputanga, (Brycon hilarii), close to the surface, Aquario Natural, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi / Shoal of Piraputanga, (Brycon hilarii), close to the surface, Aquario Natural, Bonito, Mato Grosso do Sul, Brazil.