 In this study, researchers investigated the feeding habits of fishes living in the Rosana Reservoir, southeast Brazil. They observed nine species of fish, including hemogrammus marginatus, roboids perinensis, hyphysobreconeques, astynax ultrapyranii, serosalmus spiliplura, and bryconamericus terminius. These fish were found to be either invertevores or algevores, depending on their diets. Invertevore fish such as hemogrammus marginatus, roboids perinensis, and hyphysobreconeques fed primarily on aquatic insect larvae. Algevores fish such as astynax ultrapyranii, serosalmus spiliplura, and bryconamericus terminius fed mainly on filamentous blue-green algae, diatoms, and paraderm. This indicates that these fish have distinct feeding strategies, which may help them coexist peacefully in the same environment. This article was authored by El Qassadi, H. F. Mendez, and K. M. Ferreira.