Species profile
Checker Barb
Oliotius oligolepis
Peaceful
Easy care
60 L minimum aquarium
4–5 cm adult size
Midwater
Minimum group: 8
About this species
General notes for hobby use.
Peaceful small Sumatran barb from creeks, rivers and lakes. Prefers cooler, soft to moderately hard water.
Water parameters
Suggested general range for long-term care.
Temperature
20–24 °C
pH
6–7
GH
0–12 dGH
KH
Not yet documented
Flow preference
Low–moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 8
Tank zone
Midwater
Territory level
Low
Predation risk
Shrimp fry
Bioload factor
0.7
Peaceful social barb. Keep a good-sized group to encourage natural display and reduce shyness.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
Yes
Cave breeder
No
Digs substrate
No
Jump risk
Low
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Omnivore
Minimum aquarium volume
60 L
Minimum footprint
60 × 30 cm
Accepted scientific name
Oliotius oligolepis
Alternative names
Checker Barb, Checkered Barb, Island Barb
Native range
Central Sumatra, Indonesia; introduced elsewhere.
Natural habitat
Creeks, rivers and lakes. Provide plant/wood cover, open swimming space and moderate-to-gentle circulation.
Diet & feeding
Omnivore feeding on worms, small crustaceans, insects and plant matter; offer varied prepared, vegetable and frozen/live foods.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Males are typically slimmer and more brightly coloured, especially in the fins; females are fuller-bodied.
Breeding
Egg-scattering non-guarder among fine vegetation; remove adults or protect eggs during deliberate breeding.