Species profile
Skunk Corydoras
Brochis arcuata
Peaceful
Moderate care
120 L minimum aquarium
5–7 cm adult size
Bottom
Minimum group: 8
About this species
General notes for hobby use.
Identity warning: most aquarium fish sold simply as 'Skunk Cory' are Hoplisoma granti, not true Brochis arcuata. This profile applies to confirmed B. arcuata.
Water parameters
Suggested general range for long-term care.
Temperature
22–26 °C
pH
5.5–7.5
GH
1–10 dGH
KH
Not yet documented
Flow preference
Moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Minimum group: 8
Tank zone
Bottom
Territory level
None
Predation risk
Tiny fry
Bioload factor
0.75
Peaceful social cory-type catfish. Keep a proper group on fine sand with shaded cover and unrestricted access to the surface for air-gulping.
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
Yes
Jump risk
Low
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
5–8 years
Diet type
Omnivore
Minimum aquarium volume
120 L
Minimum footprint
80 × 35 cm
Accepted scientific name
Brochis arcuata
Alternative names
Corydoras arcuatus, True Arcuatus Cory, Skunk Corydoras
Native range
Western Amazon basin: middle Juruá, Javari and nearby western Amazon drainages of Brazil, Peru and Colombia.
Natural habitat
Small blackwater or clearwater streams with sand, leaf litter, roots and submerged wood.
Diet & feeding
Benthic invertebrates and detrital/plant material; provide quality sinking foods plus frozen/live invertebrates. It must be directly fed.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Females are larger and broader through the abdomen; males are slimmer, especially when viewed from above.
Breeding
Typical Corydoradinae T-position spawning with adhesive eggs placed on glass, plants or décor and no parental care.