Species profile
Giant Danio
Devario aequipinnatus
Peaceful
Easy care
180 L minimum aquarium
10–15 cm adult size
Top mid
Minimum group: 8
About this species
General notes for hobby use.
Very active large danio. Needs a long tank, strong oxygenation and a secure lid.
Water parameters
Suggested general range for long-term care.
Temperature
18–25 °C
pH
6–8
GH
4–18 dGH
KH
Not yet documented
Flow preference
High
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 8
Tank zone
Top mid
Territory level
Low
Predation risk
Tiny fry
Bioload factor
1.5
Boisterous schooling fish rather than a territorial species. Keep a substantial group with fast robust companions and at least a 120 cm swimming run.
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
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
5–7 years
Diet type
Omnivore
Minimum aquarium volume
180 L
Minimum footprint
120 × 40 cm
Accepted scientific name
Devario aequipinnatus
Alternative names
Giant Danio, Devario aequipinnatus
Native range
South and Southeast Asia, particularly clear hill-stream systems of the Indian subcontinent and adjacent regions.
Natural habitat
Shaded, clear mid-hill streams with strong flow and high oxygen. Use smooth stones, open swimming lanes and a tightly covered tank.
Diet & feeding
Active omnivore/insectivore. Feed quality dry food plus varied frozen/live insects and crustaceans.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Females are larger/deeper-bodied; mature males tend to be slimmer and more intensely coloured.
Breeding
Egg-scattering danionin with no parental care; conditioned adults may spawn readily but will eat eggs.