多氏低线鱲 · Manipur Baril

Overview

Eight or nine blue bars and a prominent dark mark at the tail base help recognize Opsarius dogarsinghi. Modest body size does not remove its need for extensive swimming length. Its speed makes a standard mixed aquarium a poor choice.

Distribution & habitat

Most records concern the Chindwin system in northeastern India's Manipur and Nagaland, with additional occurrences in Myanmar and the upper Barak. Exact tributary limits remain uncertain. Oxygenated streams with moderate to fast flow over gravel, cobbles, and bedrock provide typical habitat.

Aquarium setup

Arrange a spacious river-style tank with stones, sand, and limited wood, leaving long clear swimming routes. Hardy attached plants can be used. Mature filtration, oxygenation, and circulation must maintain stable clean water. Weekly changes of roughly one-third to one-half are recommended. A close-fitting cover is vital against jumping.

Diet & feeding

Surface insects dominate the general natural feeding pattern, with small fishes and benthic invertebrates also possible prey. Supplement prepared food with regular frozen or live meals. Worms, brine shrimp, and nutritionally gut-loaded small insects provide variety.

Behaviour & compatibility

Tiny fish may be swallowed, while slow or hesitant partners can lose out during feeding. Robust fishes of comparable size and compatible river requirements are preferable. Five or more conspecifics help distribute dominance interactions. Smaller groups can leave one fish repeatedly targeted; solitary individuals may become hostile to lookalikes.

Sexual dimorphism

Females tend to be larger, fuller, and less colorful. Reproductive males develop head tubercles and orange coloration on the lower body.

Breeding

Aquarium reproduction has been achieved, but detailed spawning conditions and a repeatable rearing procedure have not been established here.