Vampire Pleco (L029)
Leporacanthicus galaxias
The Vampire Pleco (Leporacanthicus galaxias or L029) is one of the most fascinating and fierce benthic predators among armored catfish. The name 'Vampire' does not derive from hematophagous habits, but from its astonishing dentition: the upper jaw houses two long, sharp fang-like teeth. Deep black entirely covered with brilliant white dots reminiscent of a starry sky (hence galaxias), this imposing 25 cm (10 inch) carnivore is the terror of snails, bivalves, and aquatic crustaceans, making it a unique guest for specialized South American tanks.
Température de l’eau
24 - 28 °C
Valeur du pH
6 - 7.5
Type d'eau
Eau douce
Niveau dans le bac
Fond
Taille adulte
25 cm
Volume minimal du bac
>= 300 L
Groupe minimal
>= 1
GH
2 - 15 dGH
KH
1 - 7 dKH
TDS
40 - 295 ppm
Conductivité
63 - 461 uS/cm
Description de l'espèce
Geographical Origin and Habitat: Endemic to the Rio Tocantins basin in Brazil. Prefers deeply oxygenated, fast-flowing water, inhabiting rocky bottoms littered with massive boulders and extremely tight crevices.
Taxonomy and Morphology: Universally known as L029 or the "Vampire Pleco". The genus name and the "vampire" moniker derive from a striking anatomical feature: the upper jaw is armed with two enormous, protruding, fang-like teeth. The skull is massive with a "flattened" profile and a curiously small, incredibly powerful mouth.
Social Behavior: Highly cryptic and elusive when juvenile, never leaving its cave in daylight. As it matures, it becomes bolder but remains ferociously territorial over its primary hideout. Unafraid to use its heavy armor and sheer muscle mass to ram other fish or an aquarist's hand to defend its turf.
Coloration and Sexual Dimorphism: Matte black, charcoal, or dark anthracite base color, entirely peppered with brilliant white and pale-gold spots (like a "galaxy" of stars), which thin out and fade slightly in very old specimens. The large dorsal fin stands tall like a sail. Adult males have noticeably flatter, broader heads heavily armored with thick spines (odontodes) on the cheeks and pectorals.
Soins, reproduction et cohabitation
Aquarium Setup: Demands a solid hardscape layout of slate slabs, terracotta breeding tubes, and heavy sunken driftwood. It will not damage live plants. Critical element: there must be strong water flow along the substrate to simulate the Rio Tocantins and prevent detritus accumulation. Install a powerful wavemaker/powerhead and heavy aeration.
Diet and Feeding: NOT an algae eater. The large "vampire fangs" are specialized tools used to extract snails from their shells and crush exoskeletons. It is a strictly protein-heavy carnivore/scavenger. Feed heavily on bloodworms, chopped krill, chopped clams, prawn meat, and high-protein sinking carnivore pellets. Aquarium wood is ignored as food.
Water Quality: Requires pristine water. Nitrates must remain near zero. Tolerates moderate hardness but prefers pH 6.0-7.2. Loves it warm (25-28°C / 77-82°F). Like all Tocantins river species, a sudden drop in dissolved oxygen during summer heatwaves can be fatal almost instantly.
Compatibility and Cohabitation: Great when housed with medium to large mid-or-top dwelling fish (Geophagus, large Tetras, medium South American Cichlids). Best to avoid housing with tiny bottom dwellers (like Zebra Plecos or small Corydoras) who will be intimidated or outcompeted by the Vampire's aggressive nocturnal carnivorous appetite.
Aquarium Breeding: Difficult, reserved for specialist breeders. The male claims a tight tubular cave or rocky crevice, coaxing a female to lay a few dozen large, yellowish eggs. He then "walls" himself inside, fanning furiously for 10-14 days. The newly hatched fry emerge as massive yolk-sacs, already jet-black with white spots.
Risks and Diseases: 1. Starvation: buyers thinking it's a glass-cleaner will starve it; it strictly needs prawn and protein. 2. Netting Hazard: the upper fangs and fearsome cheek-odontodes will invariably tangle and lock into any standard cotton or nylon aquarium net, trapping the fish. Only capture by coaxing it into a submerged plastic cup or pipe.
Origine et répartition géographiques
Endemic to the Rio Tocantins basin in Brazil. Prefers deeply oxygenated, fast-flowing water, inhabiting rocky bottoms littered with massive boulders and extremely tight crevices.
Origine
Amazonie, Orénoque et GuyanesAmérique du NordAsie de l'Est
Profil de poisson
- Tempérament
- Aggressive
- They are relatively shy and reclusive during the day, keeping entirely to themselves. However, their temperament changes at night when they actively patrol their territory and fiercely chase away intruders. Providing adequate space and distinct hiding spots is the key to managing their nocturnal territoriality.
- Régime alimentaire
- Carnivore
- Unlike most plecos, this species is highly carnivorous and feeds on crustaceans, snails, and aquatic insects in the wild. Their diet must consist of meaty foods like frozen bloodworms, mussels, chopped prawns, and sinking carnivore pellets. While they may occasionally nibble on vegetables or algae wafers, it should not form the staple of their diet.
- Espérance de vie
- 10-15 years
- Taille adulte
- 25 cm
- Ratio des sexes
- Flexible
- Sexing is possible in mature adults; males develop longer odontodes on their pectoral fins and cheeks. Keeping them in pairs or keeping one male with a few females is the best way to manage aggression. Multiple males should only be housed together in exceptionally large aquariums with numerous distinct cave systems.
- Fréquence d'alimentation
- Twice daily
- Adults should be fed once a day, ideally in the evening just before the aquarium lights are turned off. Feeding them at night respects their nocturnal nature and ensures diurnal fish don't steal their food. Remove any uneaten meaty foods the next morning to prevent rapid water degradation.
- Charge biologique
- High
- The Vampire Pleco generates a moderately high bioload due to its carnivorous diet and substantial adult size. Like all large plecos, they are messy eaters that leave behind significant detritus. A robust canister filter and strict weekly gravel vacuuming are required to prevent ammonia spikes.
- Courant
- Strong
- Native to fast-flowing rivers in the Amazon basin, they require highly oxygenated water with a strong current. Powerheads or specialized circulation pumps should be used to simulate the turbulent flow of their natural habitat. Inadequate flow will lead to lethargy and increased susceptibility to disease.
- Risque de saut
- No
- Reproduction
- Rare / not documented
- Breeding them in captivity is rare but possible; they are cave spawners requiring very specific triggers. The male traps the female in a tight-fitting cave, fertilizes the eggs, and then guards them meticulously. Inducing spawning usually requires heavy feedings of live foods followed by a large, cool water change to simulate the rainy season.
- Compatibilité et compagnons
- Verify
- They are generally peaceful with mid-to-top dwelling fish but can be highly territorial toward other bottom dwellers. They will vigorously defend their chosen cave from other plecos or bottom-dwelling cichlids. Housing them with robust, fast-swimming community fish like large tetras or peaceful cichlids works best.
- Niveau dans le bac
- Bottom
- They are strictly benthic fish that spend daylight hours completely hidden inside caves or under large pieces of driftwood. They will only venture out to forage along the substrate under the cover of darkness. The aquarium must be decorated with plenty of rockwork and wood to provide adequate shelter.
Modèles et paramètres scientifiques
FishBase
Fenêtre sur les données scientifiques officielles de l’espèce
FishBase v25.04Données synchronisées le : 15/06/2026
- Résilience
- Moyenne (1,4 - 4,4 ans)
- Singularité phylogénétique (PD50)
- 0.5625
- Relation bayésienne longueur-poids
- a = 0.02692, b = 2.96
- VulnérabilitéVulnérabilité faible (16 / 100)
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