钝半齿脂鲤

Overview

A relatively large, active schooling characin, Hemiodus unimaculatus needs spacious housing and conspecific company. New arrivals may be flighty, with floating cover helping them settle. A close-fitting lid is essential because startled fish can leap well beyond the water.

Distribution & habitat

It is native to Guyana, Suriname, French Guiana, and Brazil. Habitats include floodplain lakes and faster-flowing river sections.

Aquarium setup

Suggested minimum dimensions are 120 by 45 by 45 cm. Inert sand, smooth stones, and wood form a simple setting, while planted aquaria also work. Floating vegetation reduces nervousness. Maintain strong oxygenation and consistently clean water, with no escape gaps in the cover.

Diet & feeding

Most live, frozen, and dry foods are readily accepted. Reports of substantial plant feeding in nature support including green foods regularly instead of offering animal foods alone.

Behaviour & compatibility

Despite its peaceful nature, its size and constant activity can unsettle smaller or quieter fish. Suitable companions include similarly sized placid characins, cichlids, and catfish. Maintain a group; larger groups generally settle more readily after introduction.

Sexual dimorphism

Mature females may be rounder-bellied, though this is not a confirmed reliable distinction.

Breeding

Wild spawning occurs in the wet season, and egg scattering is considered likely. Seasonal timing does not by itself establish an aquarium induction method, and the proposed spawning mode remains tentative.