异丝圆唇鱼

Overview

Fringed, branching barbels distinguish Cyclocheilichthys heteronema from its close relatives. They point downward as the fish searches surfaces for food. This is a notably gentle but retiring species, for which access to food is often more important than the apparent peacefulness of a community.

Distribution & habitat

Its range spans mainland Southeast Asia from Myanmar to Vietnam and continues through the Malay Peninsula to Borneo and Sumatra. Occurrences include the Mekong, Chao Phraya, and Tonle Sap systems. Most records come from the peninsula, and it appears scarce despite that broad distribution.

Reports suggest a preference for deeper water, with only brief annual use of shallow areas. Seasonal flooding allows movement into woodland and floodplains.

Aquarium setup

Fine, soft sand supports its natural browsing behavior. Keep illumination subdued and use substantial wood to create shaded areas; floating vegetation can soften incoming light further. Ferns, mosses, or suitable crypts provide planting options where more demanding plants would struggle.

Diet & feeding

It apparently searches the bottom and other surfaces for tiny invertebrates, including worms, insects, and crustaceans. Offer small frozen or live foods each day, together with quality sinking preparations. Bloodworms, tubifex, daphnia, and brine shrimp are useful options. Observe feeding closely when other fish share the aquarium.

Behaviour & compatibility

Keep at least four together to encourage a more confident group. Large, forceful, or very competitive feeders may suppress it even without attacking. Small peaceful cyprinids and appropriately chosen loaches have proved more suitable companions.

Sexual dimorphism

An adult female may have a rounder abdomen than a male. Treat that tendency cautiously rather than assuming every fuller individual can be sexed with certainty.