Striped Raphael Catfish (Talking Catfish)
Platydoras armatulus
The Striped Raphael or Talking Catfish (Platydoras armatulus) is a true armored 'tank' of the Amazon basin, often mistakenly sold in the trade as its congener P. costatus. Growing to impressive proportions (20-25 cm / 8-10 inches) and of remarkable longevity (it can easily exceed 15 years), it sports a wide and very robust cylindrical body with a spectacular striped milk-white/cream livery on a pitch-black or very dark brown background. It is renowned as 'Talking' for its extraordinary ability to emit loud and funny grunts or groans audible both in the water (by stridulating the pectoral bone) and when taken out of the water in case of moving. Armored with hooked bony shields along the entire flank, it is one of the most indestructible catfish around.
Température de l’eau
22 - 30 °C
Valeur du pH
6 - 7.5
Type d'eau
Eau douce
Niveau dans le bac
Fond
Taille adulte
20 cm
Volume minimal du bac
>= 250 L
Groupe minimal
>= 1
GH
4 - 15 dGH
KH
2 - 7 dKH
TDS
80 - 295 ppm
Conductivité
125 - 461 uS/cm
Description de l'espèce
Geographical Origin and Habitat: Amazon and Paraná River basins, Orinoco. Frequents dark meanders, stagnant waters and submerged roots loaded with organic debris of the forest (Blackwater).
Taxonomy and Morphology: Striped Raphael Catfish (Platydoras armatulus). Historically confused with *P. costatus*. Armored like a tank: it has hooked bony shields (scutes) all along its side and back. Flat and solid skull.
Social Behavior: The Night Ghost. By day you will never see it; it will dig a perfect furrow under the deepest wood to sleep in a group with its peers. At dusk, it emerges clumsily in search of debris on the bottom.
Coloration and Sexual Dimorphism: Lethal contrast. Very dark horizontal black band enclosed in two strong cream-white (or yellowish) lines running from the snout to the spiny tail. The belly is smooth white. Males thinner.
Soins, reproduction et cohabitation
Aquarium Setup: Catfish tank (120 cm / 48 inches). Fine sand. Hollow woods, hidden terracotta pipes and a dense forest of Echinodorus, to prevent the light from irritating its diurnal eyes. Filters that do not generate excessive water current.
Diet and Feeding: Detritivore and Carnivore scavenger. Literally sweeps away anything uneaten by others. Needs thick sinking pellets, ground snails, krill and bloodworms. Must be fed in the evening or with the lights off.
Water Quality: Indestructible armored fish. Does not get ich and is highly resistant to pollutants. Survives temperature jumps, but needs slightly acidic pH so as not to flake the carapace.
Compatibility and Cohabitation: Gentle giant. for those who do not fit in its mouth. Will ignore all medium-large fish (Angelfish, Geophagus, Discus), but will systematically swallow Neons or dwarf Corydoras during the night. Never with Caridinas.
Aquarium Breeding: Extremely rare. Only through hormonal induction in Southeast Asian farms. Mature females may seem about to explode with eggs (gravid), but without the hormones of the rainy season they will not lay them.
Risks and Diseases: The "Croaking" fish (Talking Catfish). If taken out of the water for tank cleaning (NEVER bare-handed nor with nets due to the lateral hooks lethal to whoever touches it), it will emit guttural squeaks (creaks) by rubbing the pectoral bones, scaring the aquarist to death.
Origine et répartition géographiques
Amazon and Paraná River basins, Orinoco. Frequents dark meanders, stagnant waters and submerged roots loaded with organic debris of the forest (Blackwater).
Origine
Amazonie, Orénoque et GuyanesAmérique du NordAsie de l'Est
Profil de poisson
- Tempérament
- Territorial
- Platydoras armatulus is renowned for its incredibly peaceful and somewhat reclusive nature. They are notoriously shy during the day and will stubbornly wedge themselves into tight crevices. When handled, they can produce audible croaking or squeaking sounds by locking their pectoral fins. They will never bother tankmates that are too large to be considered food.
- Régime alimentaire
- Omnivore
- They are unfussy, nocturnal omnivores that will scavenge the bottom for leftover food. Sinking carnivore pellets, algae wafers, and frozen bloodworms make an excellent staple diet. They appreciate occasional treats of live blackworms or chopped earthworms. It is important to ensure food reaches the bottom before faster surface fish consume it all.
- Espérance de vie
- 15-20 years
- Taille adulte
- 20 cm
- Ratio des sexes
- Group
- Sexual dimorphism is virtually non-existent, though mature females may appear noticeably rounder when viewed from above. They can be kept singly or in groups without any territorial aggression. A group of three or more often share the same hiding spot during the day. Keeping them in groups makes them slightly more outgoing.
- Fréquence d'alimentation
- Once daily
- Since they are strictly nocturnal, it is best to feed them just before or after the aquarium lights go out. Feeding them once a day is usually sufficient for adults, while juveniles can be fed twice. They will use their barbels to locate food in complete darkness. Overfeeding should be avoided as they are prone to becoming obese.
- Charge biologique
- High
- Platydoras armatulus contributes a moderate to heavy bioload, typical of thick-bodied catfish. They are robust eaters that produce significant waste, especially as they grow larger. Strong mechanical and biological filtration is necessary to keep the substrate clean. Regular gravel vacuuming during water changes will prevent the buildup of detritus.
- Courant
- Stagnant
- They appreciate a moderate water flow that provides adequate oxygenation. While they do not need torrential river rapids, stagnant water should be avoided. The current helps distribute scents, allowing them to scavenge more effectively. A well-placed powerhead or strong canister filter output will keep them comfortable.
- Risque de saut
- No
- Reproduction
- Oviparous
- Captive breeding of this species in home aquaria is virtually unheard of. In the wild, they spawn in the wet season, scattering eggs among vegetation. Commercial breeding is often achieved using hormone injections in large aquaculture farms. There are no documented cases of spontaneous spawning in typical hobbyist setups.
- Compatibilité et compagnons
- Community
- They are extremely peaceful community fish but will eat anything small enough to swallow whole. Small tetras, rasboras, or dwarf shrimp will likely disappear during the night. They do excellent with medium to large community fish like robust cichlids, larger tetras, and gouramis. Their heavily armored bodies protect them from mildly aggressive tankmates.
- Niveau dans le bac
- Bottom
- They are strictly bottom dwellers that spend the majority of their daylight hours completely hidden. They require plenty of caves, driftwood tangles, or PVC pipes to feel secure. At night, they will actively patrol the entire bottom footprint of the tank. A soft, sandy substrate is preferred to protect their sensitive barbels.
Modèles et paramètres scientifiques
FishBase
Fenêtre sur les données scientifiques officielles de l’espèce
FishBase v25.04Données synchronisées le : 15/06/2026
- Niveau trophique
- 2,2 ± 0,1 se
- Résilience
- Moyenne (1,4 - 4,4 ans)
- Singularité phylogénétique (PD50)
- 0.5312
- Relation bayésienne longueur-poids
- a = 0.01549, b = 2.94
- VulnérabilitéVulnérabilité modérée (41 / 100)
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