Hemibagrus Macropterus

Datasheet

General Description

Hemibagrus Macropterus, a member of the Bagridae family under the Siluriformes order, is a species primarily recognized for its dark brown body with minimal black spots, possessing a single-chambered swim bladder. Found largely in Southeast Asia, it thrives in swiftly-flowing rivers with rocky substrates. With a maximum size of 40.8cm, this species is mainly set apart by its long adipose-fin, characteristic of the H. guttatus species group.

Aquarium Setup

For Hemibagrus Macropterus, replicating its natural habitat in the aquarium setup is crucial. It is best housed in a tank with a swift water current and rocky substrates, mirroring its natural habitat in rivers and tributaries. Adding appropriate hiding spots like caves and driftwood is recommended for their well-being (see table for detailed setup).

Behaviour

Known to be predators feeding on invertebrates and smaller fish, the Hemibagrus Macropterus displays an active and inquisitive nature in captivity. They may exhibit territorial behavior, especially during breeding seasons, so providing adequate hiding spaces is essential to reduce aggression.

Feeding and Diet

In the wild, Hemibagrus Macropterus primarily feeds on invertebrates and smaller fish. In captivity, they can be sustained on a varied diet including high-quality pellets, frozen and live foods. However, they can adapt well to commercially prepared food, eliminating the need for live prey in captivity.

Reproduction & Dimorphism

Reproduction of Hemibagrus Macropterus remains unrecorded in aquarium settings. In their natural habitat, they breed during June and July, with females laying up to 2000 eggs per spawning event. Dimorphism is not distinctly pronounced in this species.

Habitat and Distribution

The Hemibagrus Macropterus is native to central and southern China, particularly found in rivers like Zhujiang, Changjiang, and Qiantang Jiang. Their existence has been threatened by dam constructions and pollution, leading to local extirpation in certain areas. The species prefers habitats with swift currents and rocky substrates for optimal survival.