Species profile
Pike Cichlid Regani
Wallaciia regani
Semi aggressive
Moderate care
150 L minimum aquarium
7–11 cm adult size
Bottom–mid
Minimum group: 2
About this species
General notes for hobby use.
Accepted genus updated from Crenicichla to Wallaciia. Keep locality data where known because the former regani complex is geographically variable.
Water parameters
Suggested general range for long-term care.
Temperature
24–29 °C
pH
5–7.2
GH
1–12 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: 2
Tank zone
Bottom–mid
Territory level
High
Predation risk
Small fish
Bioload factor
2
Dwarf pike cichlid with substantial territorial aggression for its size. Keep a compatible pair only with strong structure and a separation plan.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
Yes
Cave breeder
Yes
Digs substrate
Yes
Jump risk
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
6–8 years
Diet type
Carnivore
Minimum aquarium volume
150 L
Minimum footprint
80 × 50 cm
Accepted scientific name
Wallaciia regani
Alternative names
Crenicichla regani, Regani Dwarf Pike Cichlid
Native range
Amazon basin of Brazil; geographically variable populations occur in multiple tributaries.
Natural habitat
Soft-water river and creek margins with leaf litter, submerged wood, roots and shaded cover.
Diet & feeding
Small fish and aquatic invertebrates in nature; use worms, crustaceans, frozen foods and quality carnivore/cichlid pellets. Avoid routine feeder fish.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Females typically show distinct dorsal-fin ocelli and remain smaller; males grow larger and lack the same female dorsal pattern.
Breeding
Cave/substrate spawner. A pair forms a territory and guards eggs and fry; aggression between adults can escalate rapidly.