Rio da Prata, Bonito, Brazil Mid-day Piraputanga school with bites on their tails from Piranhas at night

Rio da Prata, Bonito, Brazil Piraputanga changing direction at the surface in the morning

Rio da Prata, Bonito, Brazil Piraputanga schooling and circling in front of the camera in the morning

Rio da Prata, Bonito, Brazil Active Piraputanga and Tetras at the surface

Rio da Prata, Bonito, Brazil Piraputangas facing upstream in the current during mid-morning in Bonito

Rio da Prata, Bonito, Brazil Upstream movement of Piraputanga in the morning