Feeding behaviour of the Corydoradinae

The evolution of a sub-family of south-american freshwater catfishes has created a great diversification of its representants into a huge number of species, usually members of characteristic mimicry communities. After the work of Alexandrou (Alexandrou, 2011) on the phylogeny of the group that discovered the existence of more deep divisions, from the taxonomic point of view, of the sub-family, even from the ecological point of view, I tried to reconfirm these statements from the ethological point of view, settling watching and recording sessions and an experiment that could show their interactions on the environment by observing their substrate mixing action.