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Pimelodus pictus, also called Angelicus or pictus catfish, is a South American catfish valued for its silver body covered with dark spots and long barbels. A fairly common species in the aquarium trade, it is especially active at dusk and during the night. Peaceful with similar-sized tank mates, it is best kept in a small group in a spacious aquarium with plenty of hiding places. Its predatory mouth may swallow very small fish. The specimens presented here are collected from the wild (wild).

General description of the species

Pimelodus pictus is a pimelodid catfish from South America. It mainly occupies the bottom, but actively swims through the lower and middle parts of the aquarium, especially when the lighting is reduced. Its behavior is gregarious, and a group is more natural and reassuring than a single specimen. It is generally peaceful toward fish of comparable size, while remaining opportunistic toward very small tank mates. It benefits from clean, well-oxygenated water and a layout offering sheltered areas. Its availability is very common in the hobby, although wild fish may arrive thin or stressed and require careful acclimation.

Geographical origin and biotope

The range of Pimelodus pictus includes parts of the Amazon and Orinoco basins, particularly in Colombia, Peru, Brazil, and Venezuela. In Colombia, it is associated with tributaries such as the río Meta and río Caquetá systems. Its natural habitat consists of warm lowland tropical waterways, often clear to slightly stained, with moderate current. Banks are lined with riparian vegetation, while the bottom contains sand, fine gravel, leaf litter, and submerged wood. In an aquarium, efficient filtration, good circulation, and shaded areas reproduce its natural conditions better than intense lighting and a bare layout.

Precise location and local name

In Colombia, Pimelodus pictus is generally associated with the río Meta and río Caquetá drainage systems, which belong respectively to the Orinoco and Amazon basins. The most practical local or vernacular name in aquarium use is bagre pictus; international trade also commonly uses Angelicus or pictus catfish. Names may vary between regions and may be shared with other small spotted catfish. To avoid confusion, the scientific name remains the most reliable reference when purchasing fish, especially wild specimens whose origin may influence coloration, size, and acclimation.

Appearance and physical characteristics

Pimelodus pictus has an elongated silver to pale-gray body marked with large irregular black spots, its most distinctive feature. The head is relatively flattened and bears several pairs of barbels used to explore the bottom in dim conditions. The dorsal and pectoral fins have sharp spines, so the fish should be handled carefully because the spines can catch in a net. The caudal fin is forked and the body remains slender in adults. Its long fins and contrasting pattern explain much of its appeal. Maximum aquarium size is about 15 cm, although many individuals remain smaller.

General feeding

Pimelodus pictus is an omnivore with a carnivorous tendency that feeds mainly when light levels fall. Its natural diet includes small aquatic invertebrates, larvae, crustaceans, and other prey available on or near the bottom. In aquariums, it readily accepts quality sinking pellets, catfish tablets, and frozen foods such as bloodworms, brine shrimp, and mysis. A varied diet helps maintain body condition, especially after transport of wild fish. It should not be treated as a scavenger responsible for cleaning the aquarium. Feed after the lights have been dimmed and make sure every fish receives enough food without creating excess waste.

Essential data

• Name of native river: río Meta and río Caquetá systems, in the Orinoco and Amazon basins.
• Local name used: bagre pictus.
• Origin of the scientific name: the genus Pimelodus was established in zoological taxonomy; pictus describes the spotted coloration.
• Etymology of the full name: Pimelodus comes from the Greek pimelē, fat, and odous, tooth; pictus is Latin for painted or colored.
• Common or vernacular names: Angelicus, bagre pictus, pictus catfish.
• Family: Pimelodidae.
• Subfamily: Pimelodinae.
• Name pronunciation: pi-meh-LOH-dus PIK-tus.
• Discovery: Franz Steindachner, 1876.
• Maximum adult size: about 15 cm.
• Water temperature and pH: 24 to 28 °C; pH 6.0 to 7.5.
• Waterway appearance and surrounding vegetation: tropical lowland streams and rivers with moderate current, wooded banks, leaf litter, submerged branches, and dense riparian vegetation.
• Typical tank mates: peaceful South American fish of similar size, small eartheating cichlids, loricariids, robust characins, and other non-territorial catfish.
• Temperament and behavior: peaceful, social, active at dusk and at night; an opportunistic predator of very small fish.
• Water depth: lower and middle sections of rivers and tributaries.
• Sexual dimorphism: external differences are subtle; mature females may have a rounder abdomen.
• Bottom structure and flow: sand, fine gravel, leaf litter, and submerged wood, with moderate to fairly strong flow and well-oxygenated water.

In your aquarium

To keep Pimelodus pictus successfully, provide a spacious, covered aquarium with strong filtration, stable warm water, and good oxygenation. A group, roots, pipes, or caves provide the essential hiding places required by this nocturnal species. Avoid fish small enough to be swallowed and feed after the lighting has been reduced. Wild specimens require gradual acclimation and close observation during the first weeks. Clean substrate, regular water changes, and a varied meaty diet are the keys to long-term success.