Species profile
Pearl Danio
Danio albolineatus
Peaceful
Easy care
80 L minimum aquarium
4–6.5 cm adult size
Top mid
Minimum group: 8
About this species
General notes for hobby use.
Fast, hardy danio that prefers cooler, oxygen-rich water and plenty of open swimming length. It is a better fit for active temperate/subtropical communities than very warm tropical tanks.
Water parameters
Suggested general range for long-term care.
Temperature
18–25 °C
pH
6–8
GH
5–19 dGH
KH
Not yet documented
Flow preference
Moderate–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
None
Predation risk
Tiny fry
Bioload factor
0.7
Peaceful but constantly active. Keep in a group of eight or more with similarly energetic tankmates and use a secure lid.
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
80 L
Minimum footprint
75 × 30 cm
Accepted scientific name
Danio albolineatus
Alternative names
Pearl Zebrafish
Native range
Mainland Southeast Asia, including lower Mekong drainages and adjacent regions.
Natural habitat
Occurs in hill streams, running water and small clear streams, often near the surface. Moderate current and good oxygenation are appropriate.
Diet & feeding
Natural foods include surface insects and zooplankton. Feed quality flake/micro-pellets with varied small frozen/live foods.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Mature females are fuller-bodied; males tend to be slimmer and often show a stronger pink/pearly sheen.
Breeding
Egg scatterer with no parental care. Conditioned adults spawn among fine plants or spawning media and may consume eggs.