Species profile
L183 Starlight Bristlenose
Ancistrus dolichopterus
Peaceful
Moderate care
140 L minimum aquarium
10–14.5 cm adult size
Bottom
Can be kept singly
About this species
General notes for hobby use.
L183 is the true Ancistrus dolichopterus in specialist L-number usage.
Water parameters
Suggested general range for long-term care.
Temperature
23–27 °C
pH
6–8
GH
5–19 dGH
KH
Not yet documented
Flow preference
Moderate–high
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Can be kept singly
Tank zone
Bottom
Territory level
Moderate
Predation risk
None
Bioload factor
2
Generally peaceful but adult males defend preferred caves.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
Yes
Snail safe
Yes
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
Omnivore
Minimum aquarium volume
140 L
Minimum footprint
90 × 40 cm
Accepted scientific name
Ancistrus dolichopterus
Alternative names
L183, Starlight Bristlenose Catfish, Bushymouth Catfish
Native range
Upper and middle Brazilian Amazon basin including Negro, lower Trombetas, Tefé, Madeira and Tapajós drainages.
Natural habitat
Well-oxygenated freshwater with wood, shade and caves. L183 is particularly intolerant of poor oxygenation.
Diet & feeding
Biofilm/algae and plant-rich foods with driftwood available, supplemented by complete sinking foods and occasional animal protein.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Adult males develop pronounced snout tentacles; females have fewer and shorter tentacles.
Breeding
Male cave-spawner; the male guards eggs and fry in a secure cave.