魔颊须鳅

Overview

Red eyes and six dark body bars are typical of Barbucca diabolica, although appearance varies. Members of its genus travel with their bellies close to solid surfaces, sometimes upside down or vertically. A detailed layout lets their surface-foraging and brief social interactions become the focus of the aquarium.

Distribution & habitat

Most type specimens came from tributaries of the upper-middle Kapuas in West Kalimantan, Indonesian Borneo, between Sintang and Putussibau. One originated in Johor, Malaysia. The Bornean collections were from small forest streams.

Related fishes occur in southern and eastern Thailand and Sumatra, but potentially undescribed species prevent treating all those records as this species. Malaysian populations may also prove distinct. Surface-oriented movement suggests a preference for margins with accumulated rocks, wood, or leaves rather than exposed riverbeds; this habitat interpretation remains tentative.

Aquarium setup

Sand or fine gravel and rounded stones of different sizes can form numerous gaps and overhangs. Add roots and branches, with attached Anubias, Java fern, or mosses. Fairly bright light is suitable for encouraging surface growth through which fish appear to search for food.

In gentler-flowing arrangements, a small amount of leaf litter can decompose naturally and support microorganisms as supplementary food. A stable, biologically mature aquarium is essential, since accumulating organic waste is poorly tolerated.

Strong current is optional when oxygenation is sufficient, although stream-style aquariums also work. Routine weekly changes of roughly 30–50% of the water help maintain suitable conditions.

Diet & feeding

Small crustaceans, insect larvae, and other invertebrates are presumed natural foods, but the wild diet is not established. Aquarium fish accept suitably fine preparations as well as live or frozen Artemia nauplii, copepods, and similar items. Particle size matters for every food offered.

Behaviour & compatibility

Avoid substantially larger fish and forceful feeding competitors. Small peaceful schooling cyprinids are useful companions; comparable characins or livebearers are alternatives when geographical matching is unimportant.

A fish may briefly defend its current feeding patch. Disputes usually involve short chases rather than biting and end before an intruder reaches open water. Mild territorial behavior also occurs among its own kind, yet companionship appears beneficial. Consider six to eight as the minimum group.

Choose other loaches according to current, temperament, and adult size. Small sand-associated loaches may suit gentle flow, while appropriately sized hillstream forms can work in stream conditions. Shared classification alone does not ensure compatibility. Peaceful cohabitation with open-water Yunnanilus and small Neocaridina shrimp has been demonstrated, without guaranteeing every individual combination.

Sexual dimorphism

Both sexes can carry tubercles on the tail base and above and ahead of the anal fin; gill-cover tubercles may also occur in either sex. Mature males additionally develop a patch of minute tubercles around the base and rear of the eye, a more useful distinguishing feature.

Breeding

No aquarium breeding record is available to support a practical method.

Notes

Trade appearances are sporadic, and some exported fishes may belong to undescribed species. Eye color and stripe count should not be used in isolation for identification. The genus was assigned its own family, Barbuccidae, in 2012 on distinctive features including mouth and swim-bladder capsule structure.