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Species profile

Bachi Plecostomus L146/L232

Peckoltichthys bachi

Common names: Bachi Plecostomus L146/L232, L146, L232

Recognized speciesPlecostomus

Adult size

Up to 18 cm

Typical adult length 13.5–18 cm.

Up to 18 cm

Countries of origin

  • See all stock from Colombia

Good fit for your tank?

Good fit for

  • A peaceful community with wood and shaded shelter
  • A keeper comfortable with an uncommon, modestly territorial pleco
  • An aquarist able to verify identification before mixing similar species

Think carefully if

  • You need a reliably identified mass-produced species
  • The aquarium lacks wood or bottom shelter
  • You expect a documented beginner breeding project

Bachi Plecostomus L146/L232 is a South American loricariid represented by L146, L232. It requires stable oxygen-rich water, suitable caves, and deliberate species-appropriate feeding.

Appearance and Identification

A medium-sized brown pleco with irregular darker saddles, blotches and fine patterning that provide camouflage among submerged branches. Trade identification can be confused with similar Peckoltia-type fish.

Use the L-number identification L146, L232 together with the current assignment Peckoltichthys bachi. Do not merge it with visually similar forms without matching collection locality and diagnostic features.

Sex differences are not well described for every population. Mature males are expected to develop stronger cheek and pectoral odontodes, while females become fuller, but juveniles should be considered unsexable by appearance.

Tank Requirements

Suggested filter
About 600–750 litres an hour
Suggested heater
About 150–225 W for this tank
Minimum tank volume
150 litres
Minimum tank length
90 cm
Minimum group size
1
Recommended group size
3
Activity level
Moderate
Flow preference
Moderate
Planting preference
Moderately planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Provide a mature aquarium with driftwood, branch tangles, shaded caves and a clean open feeding area. Moderate current, good oxygenation and stable filtration suit this adaptable river catfish.

Behaviour and Tankmates

Generally peaceful with other fish, though adults may defend preferred shelters from similar loricariids. It is often shy during the day and more visible around evening feeding.

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.

It can share a community with calm fish that do not harass it or consume every sinking food item. Avoid overcrowding the bottom with territorial plecos.

Check tankmates for this species

Water Parameters

Temperature
23–28 °C
pH
5.5–7.5
GH
1–15
KH
0–7
TDS
30–250
Stability importance
Important

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
Aufwuchs Grazer, Insectivore, Omnivore
Feeding frequency
Daily
Preferred foods
  • Quality omnivore sinking waferUse a complete sinking food as the staple.
  • Frozen brine shrimp or insect larvaeOffer small portions for protein variety.
  • Natural biofilm and aufwuchsMaintain mature hardscape as supplementary grazing.
  • Vegetable-based waferProvides fibre and plant matter.

This is an adaptable omnivore. Offer quality sinking tablets, vegetable matter and varied frozen or live invertebrate foods, with wood available for cover and grazing.

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
25.5 °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.

Specific breeding information is limited. It is reasonable to provide tight caves for a mature group, but successful spawning and brood care should not be described as routine without confirmed observations.

Habitat and Origin

Geographic origin
Amazon Basin, Colombia, South America
Natural habitat
Fast-Flowing Stream, Freshwater River, Rocky Shoreline
Aquarium contexts
Breeding Tank, Freshwater Aquarium, Freshwater Community
Audience level
Intermediate

Classification

Profile type
Recognized species
Genus
Peckoltichthys
Family
Loricariidae
Species group
Fish, Plecostomus
Previous scientific names
Peckoltichthys sp. (L146), Historic L-number designation retained for identification., Peckoltichthys sp. (L232), Historic L-number designation retained for identification.

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