I keep Ameiurus serracanthus and these are absolutely fantastic catfish to keep. The fish in this genus do not get nearly as large as other Ictalurids. And because they are native to the warm waters of southern united states they do pretty well in common aquaria settings. I would agree with the ID of A. brunneus, given the yellow and green coloration. If you see it grow and its more silver and black then its serracanthus.