Checker Barb (Oliotius oligolepis) Care Guide
A peaceful, subtly colored barb with iridescent scales that create a checkerboard-like pattern. Males develop orange-red fins while females are more subdued.
Compiled by Aquairi from published sources · Published · Updated
Overview
Oliotius oligolepis is a species in the family Cyprinidae. A peaceful, subtly colored barb with iridescent scales that create a checkerboard-like pattern. Males develop orange-red fins while females are more subdued. An excellent community fish that rarely causes problems with tank mates.
Taxonomy
- Family: Cyprinidae
- Genus: Oliotius
- Scientific name: Oliotius oligolepis
- Other names: Checkerboard Barb
- Origin: Southeast Asia, Indonesia, Sumatra
Habitat
Native to Sumatra, Indonesia, where it inhabits clear, slow-flowing forest streams and rivers. Forms loose groups in well-oxygenated water; males show a darker chequered pattern along the flanks. Formerly placed in the genus Puntius.
Tank requirements
- Minimum tank volume: 60 L
- Temperature: 20-26 °C
- pH: 6-7.5
- GH: 3-12 °dGH
- Water flow: moderate
- Adult size: 4-5 cm
- Lifespan: 3-5 years
- Recommended group size: ≥ 6
- Difficulty: beginner
Diet
Classified as omnivore. Recommended feeding frequency: 2x daily. In captivity, offer a varied diet appropriate to the species — quality prepared foods supplemented with frozen or live items of suitable size.
Compatibility
- Temperament: peaceful
- Swimming level: middle
- Compatible tank mates: Neon Tetra, Corydoras, Cherry Barb, Harlequin Rasbora
- Avoid with: Large Aggressive Fish
Breeding
- Breeding strategy: egg-scatterer
- Breeding difficulty: intermediate
Checker Barb Breeding Guide
Overview
Oliotius oligolepis is a peaceful cyprinid with iridescent, checkerboard-patterned scales. It is an egg-scattering species exhibiting no parental care that spawns regularly when in good condition.
Sexing
Adult males are noticeably smaller, slimmer and more colourful than females, which are fuller-bodied.
Conditioning
The breeding group can be conditioned together in the main aquarium before being transferred to the spawning setup.
Breeding Setup
Use a dimly lit tank with mature, slightly acidic to neutral water and a temperature towards the upper end of the maintenance range of 18-25 °C. Cover the base with mesh, plastic grass matting, glass marbles or fine-leaved plants such as Taxiphyllum or spawning mops so eggs fall out of reach, and add an air-powered sponge filter or air stone.
Spawning Behavior & Trigger
Introduce one or two pairs once the females are gravid; spawning normally occurs the following morning. Alternatively, spawn a group of about six specimens of each sex in a larger tank.
Egg & Fry Care
As the species gives no parental care, remove the adults once spawning ends. Eggs hatch in 24-48 hours and the fry become free-swimming around 24 hours later. Offer infusoria-grade food for the first few days until they are large enough to accept microworm, Artemia nauplii or similar.