“…Creagrutus guanes is an omnivore and generalist species that consumed high proportion of benthic fauna (mostly Diptera larvae), and allochtonous matter (mostly seeds). The diet of C. guanes is similar to the diet of other members of the genus Creagrutus (Ortaz, 1992(Ortaz, , 2001Román-Valencia, 1998), and other members of the order Characiformes, even from different habitats such as floodplain rivers (Ortaz, 1992;Esteves & Galletti Jr., 1995;Ortaz, 2001;Vilella et al, 2002;Barreto & Aranha, 2006). We conclude that the diet of C. guanes is not a rare case, but instead may represent the diet of many tropical freshwater fish.…”