Species profile
Red Dario
Dario hysginon
Semi aggressive
Moderate care
30 L minimum aquarium
2–3 cm adult size
Bottom–mid
Minimum group: 2
About this species
General notes for hobby use.
Keep D. hysginon distinct from the separately described tiger-patterned Dario species that were historically confused with this complex.
Water parameters
Suggested general range for long-term care.
Temperature
22–26 °C
pH
6–7.5
GH
2–12 dGH
KH
Not yet documented
Flow preference
Low
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 2
Tank zone
Bottom–mid
Territory level
Moderate
Predation risk
Shrimp fry
Bioload factor
0.35
Tiny micropredator with territorial males. Dense plants, leaf litter and visual barriers allow a pair or small group to avoid constant confrontation.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
Yes
Cave breeder
Yes
Digs substrate
No
Jump risk
Low
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
3–5 years
Diet type
Carnivore
Minimum aquarium volume
30 L
Minimum footprint
45 × 25 cm
Accepted scientific name
Dario hysginon
Alternative names
Red Dario, Red Badis, Dario hysginon
Native range
Ayeyarwady drainage in northern Myanmar.
Natural habitat
Shallow vegetated streams and pools over sand, pebbles and leaf litter with gentle flow.
Diet & feeding
Tiny crustaceans, worms and insect larvae; feed small live/frozen foods and only rely on prepared foods if the fish demonstrably accept them.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Males become deep red/orange with stronger finnage; females remain smaller and grey-brown.
Breeding
Temporary pair/substrate spawner. Eggs are deposited among plants or fine cover; there is no extended parental care and adults may eat fry.