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Species profile

Munduruku Plecostomus L361

Hopliancistrus munduruku

Common names: Munduruku Plecostomus L361, L361

Recognized speciesPlecostomus

Adult size

Up to 15 cm

Typical adult length 11.2–15 cm.

Up to 15 cm

Countries of origin

  • See all stock from Brazil

Good fit for your tank?

Good fit for

  • An experienced keeper with a high-oxygen river aquarium
  • A rock and cave-focused species setup
  • An aquarist able to preserve accurate species identity

Think carefully if

  • The aquarium has weak circulation
  • Aggressive cave competitors already occupy the bottom
  • You want a fully documented beginner breeding species

Munduruku Plecostomus L361 is a South American loricariid represented by L361. It requires stable oxygen-rich water, suitable caves, and deliberate species-appropriate feeding.

Appearance and Identification

A dark Hopliancistrus covered with contrasting pale spots, with strong cheek odontodes and a compact, heavily armoured profile. The spotted pattern extends across the fins.

Use the L-number identification L361 together with the current assignment Hopliancistrus munduruku. Do not merge it with visually similar forms without matching collection locality and diagnostic features.

Mature males generally develop a broader head and stronger odontodes on the cheeks and pectoral region. Females become fuller through the abdomen, while juveniles are difficult to sex.

Tank Requirements

Suggested filter
About 400–500 litres an hour
Suggested heater
About 100–150 W for this tank
Minimum tank volume
100 litres
Minimum tank length
80 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, clean and highly oxygenated water with brisk circulation, rock cover and several narrow caves or crevices. Strong filtration is needed to keep waste from collecting in the rockwork.

Behaviour and Tankmates

Usually secretive and territorial around shelter, particularly between males. It normally ignores peaceful midwater fish.

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.

Choose calm current-tolerant companions and avoid crowding the bottom with aggressive cave-spawning plecos. Each adult needs a separate refuge.

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.

Offer a varied omnivorous diet with algae and vegetable-rich sinking foods, biofilm and regular small invertebrate foods. It should not be fed as a strict herbivore or carnivore.

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, with clutch size depending on species and female size.
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.

A male-guarded cave or crevice spawning pattern is expected, but dependable breeding details remain limited. Treat reproduction as a specialist project.

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
Recognized species
Genus
Hopliancistrus
Family
Loricariidae
Species group
Fish, Plecostomus
Previous scientific names
Hopliancistrus sp. (L361), Historic L-number designation retained for identification.

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