Pimelodus pictus make wonderful lively additions to those spacious tanks  with communities of medium-large sized peaceful species. They are best housed in groups  because of their gregarious nature; in fact, the more you can keep together, the better. They should NEVER be added to aquariums containing small fish (Neon Tetra sized) as any small species will be picked off overnight by these nocturnal catfish, with their deceptively wide mouths. The aquarium itself should have a soft sandy substrate in order to protect the long sensory barbels. It should be decorated with a good amount of bogwood, rocks and robust plants to provide shady areas, but you should also ensure a roomy swimming space in the central portion of the aquarium for these fish to "patrol". The water should be well-oxygenated with a good flow rate, and frequent partial water changes are a must. These fish are most comfortable in aquarium with subdued lighting, and the use of blue-moon type illumination is highly recommended so that you may observe a few hours of the nightly goings-on in your Pictus Catfish aquarium. Tanks that are too small for this active species will stunt their growth and they will also suffer as a result of lack of exercise. Be sure to provide these fast-swimming fish with the space they deserve. Much care must be taken when handing Pictus Catfish as they possess very sharp spines that can pierce bags (or skin!) and can become entangled in netting. These fish usually go into a "feeding frenzy" when foodstuffs are added to their aquarium "“ this may distress shy, placid species.