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Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus Corydoras, are important in the aquarium hobby. Many catfish are nocturnal, [6] [7] but others (many Auchenipteridae) are crepuscular or diurnal (most Loricariidae or Callichthyidae ...
Electric catfish are found in tropical Africa and the Nile River. [3] Electric catfish are usually nocturnal and carnivorous. [2] Some species feed primarily on other fish, incapacitating their prey with electric discharges, [2] but others are generalist bottom foragers, feeding on things like invertebrates, fish eggs, and detritus. [4]
It is a nocturnal fish like many catfish. It feeds on living, as well as dead, animal matter (such as insects, plankton, snails, crabs, shrimp, other invertebrates, birds, reptiles, amphibians, small mammals, other fishes, and eggs) and plant matter such as fruit and seeds. [7]
Like virtually all catfish, it is nocturnal, preferring to feed at night, although young feed during the day. It generally does not get as large as the channel or blue catfish, with average adult weights are in the 1-to-2-pound (0.45 to 0.91 kg) range, and almost never as large as 4 pounds (1.8 kg). It has a typical length of 6–14 inches (15 ...
Honeycomb catfish like to anchor themselves into crevices in driftwood and hide. They are mostly nocturnal and seek hiding spaces and shade. A very peaceful species, in an aquarium, honeycomb catfish do not bother other inhabitants of a community tank. [2]
It may also be called Southern striped Raphael, talking catfish, chocolate doradid, chocolate catfish or thorny catfish. [1] It is native to the Amazon, Paraguay–Paraná and lower Orinoco basins in South America. [2] This peaceful, nocturnal species is a popular aquarium fish due to its pleasant temperament and curious nature. [3]
Corydoras is a genus of freshwater catfish in the family Callichthyidae and subfamily Corydoradinae.The species usually have more restricted areas of endemism than other callichthyids, but the area of distribution of the entire genus almost equals the area of distribution of the family, except for Panama where Corydoras is not present. [1]
This fish is mainly nocturnal. [19] Firewood catfish are highly predatory [10] and feed on nekton, primarily other fish. [10] As a result of their position at the top of aquatic food chains, many predatory catfish have frequently shown the highest mercury concentrations of measured fish in the Amazon Basin. [20]