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Three Beacon Plec

Leporacanthicus triactis

The vampire plec with vivid fin markings that actually stay as it grows.

Three Beacon Plec
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© Google Gemini 2.5 Flash Image · AI-generated

About

A rarely exported suckermouth catfish from the upper Orinoco basin, Leporacanthicus triactis goes by the common trade name three beacon plec, a nod to the orange or reddish flashes on its unpaired fins. What makes this species genuinely worth seeking out is that those fin markings hold their color into adulthood, which is unusual for a loricariid. Many related species fade disappointingly as they mature. Like all members of its genus, it carries the nickname vampire plec for good reason: the upper jaw sports two prominent fang-like teeth, probably used to grip snails and invertebrates rather than anything more dramatic. There's also a small bony knob on top of the head whose function nobody has pinned down yet. In the wild these fish shelter in riverbank burrows and spawn in deep holes during the wet season, though captive breeding hasn't been achieved. In the aquarium, this is a fish that demands respect for its territorial streak, especially toward others of its own kind. Males in particular will square off, so if you want to keep more than one, generous tank space and clearly defined territories are non-negotiable. Peaceful characins, corydoras, and similar South American catfish make sensible companions. Purchasing healthy specimens is important. Check for a rounded belly and alert, full eyes before buying.

Frequently asked questions

How big does the Three Beacon Plec get?
The Three Beacon Plec reaches about 6–10" as an adult.
What size tank does the Three Beacon Plec need?
A minimum of 64 gallons is recommended for the Three Beacon Plec.
What water parameters does the Three Beacon Plec need?
The Three Beacon Plec does best with a temperature of 72–82°F, a pH of 5.5–7.5, hardness around 2–18 dGH.
Is the Three Beacon Plec aggressive?
The Three Beacon Plec is aggressive and is best kept alone or with robust tankmates that can hold their own.
What does the Three Beacon Plec eat?
The Three Beacon Plec is an omnivore. It does well on a varied diet of quality flake or pellet plus occasional frozen or live foods.
How long does the Three Beacon Plec live?
With good care, the Three Beacon Plec typically lives 5-10 years.