Species profile
Marbled Hatchetfish
Carnegiella strigata
Peaceful
Moderate care
80 L minimum aquarium
3–4 cm adult size
Top
Minimum group: 10
About this species
General notes for hobby use.
Extreme jumper. The aquarium must be sealed around every cable, pipe and filter gap.
Water parameters
Suggested general range for long-term care.
Temperature
24–28 °C
pH
5–7.2
GH
1–12 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: 10
Tank zone
Top
Territory level
None
Predation risk
Tiny fry
Bioload factor
0.4
Timid surface shoaler; a large group and floating cover greatly improve confidence.
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
Carnivore
Minimum aquarium volume
80 L
Minimum footprint
80 × 30 cm
Accepted scientific name
Carnegiella strigata
Alternative names
Marbled Hatchetfish
Native range
Amazon basin and Guiana Shield drainages in South America.
Natural habitat
Quiet shaded surface water under overhanging vegetation. Use gentle flow, floating plants and a fully sealed lid.
Diet & feeding
Surface insects and small invertebrates; feed floating microfoods and regular live/frozen foods.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Females can appear fuller when mature; otherwise external sexing is difficult.
Breeding
Rarely bred in home aquaria; spawning is associated with very soft acidic conditions and surface vegetation.