贝利氏沙昆鲤

Overview

Chagunius baileyi occasionally appears among mixed imports of wild fishes rather than as a regular aquarium offering. Similar-looking relatives complicate identification. Long-term planning must account for a group of substantial adults, not merely the size of newly imported juveniles.

Distribution & habitat

It is restricted to the Salween and Sittaung systems of Myanmar and western Thailand. Highland channels with clear water and mineral substrates are characteristic. Juveniles still occupy main channels, although they tend to choose quieter stretches than adults.

Aquarium setup

Allow extensive unobstructed swimming space. A river layout with rounded stones, gravel and scattered branches is suitable if it does not reduce that space. Maintain strong oxygenation, useful current and efficient waste removal. Use a securely fitted substantial lid because a startled adult can jump powerfully.

Diet & feeding

Young fish examined in dietary studies contained mainly aquatic invertebrates, whereas adults held substantial fine sediment. Little plant material was recorded. Offer varied small live or frozen animals with quality prepared food; sediment in the gut does not by itself establish a strictly detritivorous diet.

Behaviour & compatibility

Six or more provide a more appropriate social setting than a lone fish or small pair. Individuals may be skittish without sufficient company, and a hierarchy develops within the group. Comparable river fishes are the best candidates for companions. Very small species should be avoided despite the lack of a strong predatory reputation.

Sexual dimorphism

Conspicuous head tubercles develop in adult males but not females.

Notes

Collection information is especially useful because related species occupy different drainages. Red edging on the tail of juveniles reportedly fades with age, so a young fish’s color should not be treated as a permanent adult character.