Under controlled conditions of photoperiod, temperature, and water quality, hardhead catfish display non-random oscillations in angular orientation of locomotive activity.
Although hardhead catfish reach a weight of about 5.5 kg and are good eating, they have a mixed reputation as game fish and are often considered nuisance bait stealers.
Northern species tend to be migratory; southern species do not migrate though the hardhead travels long distances on an irregular basis in response to rainfall.
