Species profile
L097 Polka Dot Cactus Pleco
Pseudacanthicus sp. L097
Semi aggressive
Hard care
400 L minimum aquarium
20–25 cm adult size
Bottom
Can be kept singly
About this species
General notes for hobby use.
Territorial carnivorous cactus pleco. Provide a 150 cm-class aquarium, robust caves/shelters, sight breaks and strong biological filtration; avoid cramped multi-pleco layouts.
Water parameters
Suggested general range for long-term care.
Temperature
26–30 °C
pH
5–7
GH
0–20 dGH
KH
0–5 dKH
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
High
Predation risk
None
Bioload factor
4
Usually secretive but strongly territorial around shelters, especially as adults. Provide multiple robust caves and line-of-sight barriers if more than one bottom-dwelling loricariid is kept.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Caution
Shrimp safe
No / caution
Snail safe
Not yet documented
Cave breeder
Yes
Digs substrate
Yes
Jump risk
Low
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Carnivore
Minimum aquarium volume
400 L
Minimum footprint
Not yet documented
Alternative names
L097, Polka Dot Cactus Pleco, King of Galaxy, King Galaxy, Gelbfleckenkaktuswels, Panaqolus sp. L097 (legacy incorrect label), Orange Seam Pleco (legacy incorrect label)
Native range
Brazil: Rio Tapajós / Rio Curuá-Una, Pará.
Natural habitat
South American riverine loricariid from the Tapajós system. Provide clean, oxygen-rich water, shelter and robust hardscape suitable for a territorial cave-dweller.
Diet & feeding
Primarily meaty foods such as shrimp, mysis, insect larvae and quality sinking carnivore pellets/tablets; some individuals also take vegetable matter.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Males tend to develop broader heads, heavier bodies and more pronounced odontodes, especially on the pectoral-fin rays.
Breeding
Cave breeder; the male guards the clutch and developing fry in the shelter.