Sawbwa Barb Care Guide - Aquarium Setup, Diet & Breeding

Sawbwa Barbs are exceptionally small, elegant cyprinids with a silvery, streamlined body and vivid red markings on the nose and toward the tail. Mature males develop the strongest colours, often displaying a blue-green or steel-blue sheen across the body, while their red facial and caudal markings become especially striking when they are displaying.

These active fish spend much of their time in the middle and upper areas of the aquarium, where males may face one another and flash their colours in harmless displays. They are generally peaceful, but their social behaviour is most natural and their colours most impressive when they are kept in a proper group.

In the wild, Sawbwa Barbs inhabit the shallow, open margins of Lake Inle and connected streams. Their native waters are typically clear, alkaline and mineral-rich, with aquatic vegetation and gentle to moderate movement. The species is adapted to relatively cool tropical conditions compared with many popular aquarium fish.

Sawbwa resplendens is sometimes sold as the Asian Rummynose or Burmese Rummynose. It is not closely related to the South American Rummynose Tetras, despite the similar common name, and its restricted natural range makes responsible captive-bred sourcing particularly valuable.

Sawbwa Barbs are endemic to Lake Inle and its surrounding waterways in Shan State, eastern Myanmar, in Southeast Asia. They come from clear, shallow, well-oxygenated waters associated with the lake and its tributaries.

A group of Sawbwa Barbs should be kept in an aquarium of at least 60 litres, with a footprint around 60 x 30 cm or larger. Use a mature, well-filtered aquarium with good oxygenation, open swimming space and a gentle to moderate current. A dark fine-grained substrate, hardy plants, driftwood and smooth stones can recreate the shallow lake-margin environment while helping their colours stand out. Covering part of the surface with floating plants can provide security, but leave plenty of open water for schooling.

Males reach about 3.5 cm (1.4 in), while females are usually slightly smaller at around 3 cm (1.2 in).

Offer a varied diet of suitably small foods, including quality micro-pellets or crushed flake, baby brine shrimp, daphnia, cyclops and other tiny frozen or live foods. Their small mouths require appropriately sized portions, and regular live or frozen foods help maintain colour and condition. Feed small amounts once or twice daily, removing uneaten food promptly.

Sawbwa Barbs are peaceful community fish and can live with other small, calm species such as celestial pearl danios, small rasboras, white cloud mountain minnows, smaller peaceful danios and pygmy Corydoras. Choose tankmates that tolerate similar relatively cool, neutral-to-alkaline water and will not outcompete them for food. Avoid large, boisterous or predatory fish, fin-nippers and warm-water species that may stress or prey on these tiny barbs.

Sawbwa Barbs are egg-scattering fish that can be bred in a separate, mature breeding aquarium with gentle filtration, fine-leaved plants or spawning mops, and slightly cooler, clean water. Condition a group with plenty of small live or frozen foods, then introduce the adults to the breeding setup. Eggs are scattered among the plants and may be eaten, so remove the adults or protect the eggs with a mesh barrier. The eggs usually hatch within a few days, and the tiny fry should initially receive infusoria or another suitably fine first food before progressing to baby brine shrimp.

Males are more colourful, with a blue-silver body, a vivid red nose and red markings near the tail, and they are generally slimmer. Females are paler and more yellowish or silvery, with less intense red markings and a fuller body, especially when carrying eggs.