Species profile
Clown Killifish
Epiplatys annulatus
Peaceful
Hard care
40 L minimum aquarium
2.5–3 cm adult size
Top
Minimum group: 6
About this species
General notes for hobby use.
Tiny surface-dwelling killifish for soft, acidic, gentle-flow setups; excellent jumper despite its size.
Water parameters
Suggested general range for long-term care.
Temperature
20–25 °C
pH
4.5–6.5
GH
Up to 8 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: 6
Tank zone
Top
Territory level
Low
Predation risk
Tiny fry
Bioload factor
0.4
Loose social groups work well with heavy surface cover. Males display but serious aggression is limited when space and cover are adequate.
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
Not yet documented
Diet type
Carnivore
Minimum aquarium volume
40 L
Minimum footprint
45 × 30 cm
Accepted scientific name
Epiplatys annulatus
Alternative names
Clown Killifish, Rocket Panchax, Banded Panchax
Native range
Coastal West Africa, especially Guinea, Sierra Leone and Liberia.
Natural habitat
Shallow forest streams, swamps and marginal pools with very soft acidic water, dense overhanging/floating vegetation and little current.
Diet & feeding
Micropredator specialising in tiny insects and aquatic invertebrates; use appropriately small live/frozen foods and fine quality prepared foods.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Males are more strongly patterned and develop more extended, colourful fins; females are plainer.
Breeding
Eggs are scattered individually among moss, fine plants or spawning mops; incubation is roughly 9–14 days depending on temperature.