Species description

Care, breeding and tankmates

Fish profile

Temperament

Peaceful

Leiarius pictus is a relatively docile and peaceful giant, provided its tank mates are large enough to not be eaten. They are active mostly during twilight and nocturnal hours, but can adapt to daytime feeding. They may become skittish if adequate hiding spaces for their massive size are not provided.

Diet

Carnivore

They are omnivorous scavengers with a strong preference for meaty foods. A varied diet of high-quality sinking pellets, earthworms, pieces of fish, and crustaceans should be provided. They will readily accept prepared foods but appreciate the addition of fresh or frozen meaty treats.

Sex ratio

Group

Sexual dimorphism is not readily apparent in this species, making sexing nearly impossible outside of spawning condition. They can be kept solitarily or in groups if the aquarium is extraordinarily large. If keeping a group, ensure adequate space to minimize territorial squabbles.

Feeding frequency

Twice daily

Juveniles should be fed daily to ensure proper development and robust growth. As they mature, feeding can be reduced to three or four times a week to prevent obesity. Careful monitoring of their body condition is required to adjust portion sizes accordingly.

Bioload

Leiarius pictus, or the Painted Pimelodid, produces a massive bioload as it grows into a very large and heavy-bodied catfish. Their substantial dietary intake results in a huge amount of physical waste. Enormous aquariums with commercial-grade filtration systems are mandatory to keep the water safe.

Flow

Strong

They prefer a moderate to strong water flow that mimics the large rivers of their natural South American habitat. Strong currents help to oxygenate the water and simulate a natural environment. Ensure there are also areas of lower flow where the fish can rest easily.

Jump risk

No

Reproduction

Mouthbrooder

Captive breeding of the Painted Pimelodid has not been successfully documented in the home aquarium. Their large adult size and complex hormonal triggers make natural spawning unfeasible in captivity. Commercial breeding is likely achieved through hormone injections in massive pond setups.

Compatibility & tankmates

Verify

This catfish is generally peaceful but is a highly capable predator that will swallow any fish that fits in its capacious mouth. They are best kept with other large, robust species such as big characins, large cichlids, or other big catfish. They should not be trusted with small or slender tank mates.

Tank level

Bottom

They are predominantly bottom-dwelling fish that constantly patrol the substrate in search of food. While they stick to the bottom, their large size means they will occupy a significant portion of the lower water column. Large pieces of smooth driftwood can provide welcome cover.