Species profile
Kubotai Rasbora
Microdevario kubotai
Peaceful
Moderate care
45 L minimum aquarium
1.8–2 cm adult size
Mid–top
Minimum group: 10
About this species
General notes for hobby use.
Very small, active shoaling fish best in a mature planted aquarium with clean, well-oxygenated water and suitably tiny foods.
Water parameters
Suggested general range for long-term care.
Temperature
22–26 °C
pH
6–7
GH
Up to 10 dGH
KH
Not yet documented
Flow preference
Moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 10
Tank zone
Mid–top
Territory level
None
Predation risk
Tiny fry
Bioload factor
0.3
Peaceful but active; a larger group improves confidence and schooling behaviour.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
Yes
Snail safe
Yes
Cave breeder
No
Digs substrate
No
Jump risk
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Omnivore
Minimum aquarium volume
45 L
Minimum footprint
45 × 30 cm
Accepted scientific name
Microdevario kubotai
Alternative names
Neon Green Rasbora, Green Kubotai Rasbora
Native range
Myanmar and western Thailand.
Natural habitat
Clear streams and flowing waters; aquarium layouts should combine plants with open swimming room and moderate current.
Diet & feeding
Micro-predator/omnivore taking tiny invertebrates and zooplankton; feed appropriately small foods.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Mature females are generally fuller-bodied; males are slimmer and can show stronger colour.
Breeding
Non-guarding egg scatterer among plants; eggs/fry may survive opportunistically in dense mature growth.