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Species profile

L020 Spectracanthicus Plecostomus

Spectracanthicus sp. (L020)

Common names: L020 Spectracanthicus Plecostomus, L020

Undescribed speciesPlecostomus

Countries of origin

  • See all stock from Brazil

Good fit for your tank?

Good fit for

  • An experienced keeper of warm-water cave plecos
  • A species aquarium with strong filtration
  • An aquarist committed to preserving coded-form identity

Think carefully if

  • The L020 identity is uncertain
  • The aquarium has limited caves or oxygenation
  • Similar forms will be mixed without breeding control

L020 Spectracanthicus Plecostomus is a South American loricariid represented by L020. It requires stable oxygen-rich water, suitable caves, and deliberate species-appropriate feeding.

Appearance and Identification

A dark coded Spectracanthicus with pale spotting or fine patterning over the body and fins. Similar unnamed forms exist, so L020 provenance is more reliable than assigning an unsupported species name.

Use the L-number identification L020 together with the current assignment Spectracanthicus sp. (L020). Do not merge it with visually similar forms without matching collection locality and diagnostic features. The L-number remains the principal stable identifier because the form is undescribed or not conclusively assigned.

Mature males tend to develop broader heads and stronger odontodes on the cheeks and pectoral fins. Females become fuller, while juveniles are difficult to sex.

Tank Requirements

Suggested filter
About 360–450 litres an hour
Suggested heater
About 100–125 W for this tank
Minimum tank volume
90 litres
Minimum tank length
75 cm
Minimum group size
1
Recommended group size
3
Activity level
Moderate
Flow preference
High
Planting preference
Lightly planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Provide warm, highly oxygenated water, strong filtration, rock cover and multiple tight caves. Maintain low waste levels despite protein-rich feeding.

Behaviour and Tankmates

Nocturnal and territorial around caves, but usually peaceful toward unrelated midwater fish. Adult males may fight over shelter.

Can be kept singly. A pair or group requires several appropriately sized caves and enough floor area for every adult to feed without being trapped.

Mature males commonly defend caves and favoured feeding areas from similarly shaped loricariids.

Use calm warm-water companions and give each pleco a separate cave. Avoid mixing similar coded forms if breeding could occur.

Check tankmates for this species

Water Parameters

Temperature
25–30 °C
pH
5.5–7.5
GH
1–12
KH
0–6
TDS
30–220
Stability importance
Critical

Maintain stable clean water with strong oxygenation. Warm water, protein-rich food, wood waste, and crowded hardscape can rapidly reduce oxygen and degrade water quality.

Parameter caveat
Acclimate slowly to temperature and conductivity changes. Keep ammonia and nitrite at zero, control nitrate, and inspect caves and rockwork for trapped waste.

Feeding

Diet types
Carnivore, Insectivore, Omnivore
Feeding frequency
Daily
Preferred foods
  • Quality carnivore sinking pelletUse a protein-rich sinking food near each shelter.
  • Frozen brine shrimp, mysis, or insect larvaeOffer varied aquatic animal foods.
  • Chopped mussel or prawnFeed clean small portions and remove remains promptly.
  • Soft omnivore waferProvides fibre and plant matter alongside the protein-rich staple.

Feed a protein-oriented omnivorous diet with quality carnivore pellets and small crustacean or insect foods, plus some vegetable matter.

Feed after lights dim and distribute food near every occupied shelter. Confirm that subordinate fish eat and remove rich leftovers before they affect water quality.

Breeding

Breeding type
Cave Spawner, Egg Layer
Breeding difficulty
Difficult
Breeding temperature
27.5 °C
Breeding pH
6.5
Brood or egg count
Usually several dozen adhesive eggs; dependable species-specific fecundity data are unavailable.
Incubation
7 days
Parental care
Paternal care
Baby foods
  • Mature biofilmProvides continuous grazing after fry leave the cave.
  • Fine powdered sinking foodFeed tiny portions close to shelter several times daily.
  • Newly hatched brine shrimpUse as supplementary protein once fry can take moving prey.

Male-guarded cave spawning is expected, but detailed L020 breeding records are limited. Preserve parentage and L-number records for any offspring.

Habitat and Origin

Geographic origin
Amazon Basin, Brazil, South America
Natural habitat
Fast-Flowing Stream, Freshwater River, Rocky Shoreline
Aquarium contexts
Breeding Tank, Freshwater Aquarium, High-Flow Aquarium, Species-Only Aquarium
Audience level
Advanced

Classification

Profile type
Undescribed species
Genus
Spectracanthicus
Family
Loricariidae
Species group
Fish, Plecostomus

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