帕氏波鱼

Overview

Active Rasbora paviana develops dark scale edges and a lateral band that expands into a shaped tail-peduncle blotch. Similar striped rasboras can be difficult to separate, making a reliable collecting locality useful alongside appearance.

Distribution & habitat

It inhabits major basins in Thailand, Laos, Cambodia and Vietnam. Sites range from rocky hill streams to lowland ponds and slow rivers with silt and leaf deposits. One Vietnamese river locality combines shallow riffles, rocky rapids and pools in clear water with little submerged plant growth.

Aquarium setup

Allow at least 120 by 30 by 30 cm for a group. A planted or river-style layout should preserve open lanes. This surface-dwelling jumper requires carefully closed lid gaps. Consistent maintenance is needed to prevent organic wastes from accumulating.

Diet & feeding

Insects and other invertebrates dominate the natural diet. Combine appropriately sized dry foods with regular live or frozen portions.

Behaviour & compatibility

A group of six or more is more confident and colorful. It is peaceful enough for a suitable larger community, but natural coexistence alone does not establish aquarium compatibility.

Sexual dimorphism

Females usually become rounder-bellied and slightly larger at maturity.

Breeding

Captive success is uncertain, although egg scattering without parental care is described. A trial adapted from smaller relatives can use a dim, shallow 120 cm aquarium with protected eggs and slightly acidic to neutral water. Introduce conditioned pairs into a partly filled tank and add cooler water gradually. Remove adults after a couple of days, protect fry with sponge filtration and have suitable first foods ready. Genus-level development times remain provisional guidance.

Notes

Older publications frequently use the invalid spelling Rasbora paviei. Geographic variation affects markings and fin color, so a yellow fin or isolated tail spot is insufficient for identification.