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Fish Freshwater Care: medium Peaceful

Panaque armbrusteri (L027)

Panaque armbrusteri
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Other names: L027, L027d, Armbrusteri panaque, Panaque cf. armbrusteri, Tapajós panaque
Group: Plecos and suckermouth catfish · Family: Loricariidae · Origin: South America — Rio Tapajós; similar forms in the Tocantins, Araguaia and Xingu (Brazil)

A close Brazilian relative of the royal pleco; a large, wood-eating Panaque reaching 40 cm. It scrapes roots with its spoon-shaped teeth and needs at least 500 liters and very powerful filtration.

Will it suit my tank?

Last updated October 16, 2026

Temperature
25–29°C
pH
6–7.5
Hardness
2–12 dGH
Adult size
40 cm
Minimum tank size
500 liters
Social structure
Solitary
Swimming zone
Bottom
Diet
Herbivore
Breeding
Substrate spawner

Water parameters

Temperature25–29°C
pH6–7.5
General hardness (GH)2–12 dGH
Recommended range
Damages plants Considered shrimp safe

Overview

October 16, 2026 · Suggest an edit

Panaque armbrusteri is a large, wood-eating Panaque known by the number L027. It was described from the Tapajós River in 2010; similar forms from the Tocantins, Araguaia and Xingu are sold in the trade as "L027" and "Panaque cf. armbrusteri". It looks very similar to the royal pleco (P. nigrolineatus).

Juveniles are sold small, but it grows slowly to 35–40 cm and produces a lot of waste. Before buying one, make sure you will be able to set up a large aquarium in the future.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 500 liters and 150 cm length for one adult.
  • Large, hard roots and spacious caves.
  • A canister filter or sump, weekly gravel vacuuming; it may gnaw on plants.

Diet

October 16, 2026 · Suggest an edit

Gnawing on wood is part of its diet. Make blanched zucchini, cucumber, potato, spinach and vegetable sinking tablets the staple; protein-rich food should be given rarely.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Calm toward other species; it defends its territory against its own kind and other large plecos. It is nocturnal and spends the day under roots or in its cave.

Good companions: Large tetras, silver dollars, Geophagus species, large rainbowfish.

Avoid: Small aquariums, other large plecos (in limited space), delicate planted layouts.

A short profile for this species

The Panaque armbrusteri (L027) page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026