Species profile
Julidochromis Regani
Julidochromis regani
Semi aggressive
Moderate care
200 L minimum aquarium
10–13 cm adult size
Bottom–mid
Minimum group: 2
About this species
General notes for hobby use.
Elongate rock-dwelling Tanganyikan cichlid. Pair territories can be intense even though the species is small by cichlid standards.
Water parameters
Suggested general range for long-term care.
Temperature
23–25 °C
pH
8–9
GH
15–25 dGH
KH
Not yet documented
Flow preference
Low–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
Shrimp fry
Bioload factor
2
Pairs patrol rock faces and defend crevices. Introduce juveniles/groups only with a plan to remove rejected fish once a pair forms.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
No / caution
Cave breeder
Yes
Digs substrate
No
Jump risk
Low
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Invertivore
Minimum aquarium volume
200 L
Minimum footprint
120 × 40 cm
Accepted scientific name
Julidochromis regani
Alternative names
Julidochromis Regani, Regan’s Julie, Julidochromis regani
Native range
Endemic to Lake Tanganyika, East Africa.
Natural habitat
Rocky littoral zones with abundant cracks and crevices. Use stable stacked rockwork and hard alkaline, highly stable water.
Diet & feeding
Feeds on small invertebrates and other edible material picked from rock surfaces. Offer appropriately sized carnivore/omnivore cichlid foods.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
External sex differences are slight; females may be larger. Venting or observing breeding behaviour is more reliable than colour.
Breeding
Cave/crevice substrate spawner. A bonded pair deposits eggs on sheltered rock surfaces and guards the brood.