Pseudacanthicus sp. L-275

A Little More Information...

Pseudacanthicus sp. L-275 is a highly sought-after South American loricariid among specialized aquarists. Listed under the L-275 code, this leopard-pattern cactus pleco is an aquarium identification form rather than a formally named species. It is associated with the rio Xingu in Brazil, an environment with rocks, strong water movement, and high oxygen levels. Its rarity is rated Very rare. The specimens offered here are wild-collected, and Pseudacanthicus sp. L-275 is available exclusively from Ton.Fish in Canada.

General species description

Pseudacanthicus sp. L-275 is a large benthic loricariid from the group commonly called cactus plecos. Its body is protected by bony plates, while its ventral mouth helps it hold onto hard surfaces. The L-275 code identifies an aquarium-trade population or form and does not constitute a complete species name. This fish is mainly active at dusk and during the night. It appreciates narrow shelters, caves, and areas where current provides oxygen-rich water. Its adult size and territorial behavior require a large aquarium with strong filtration, stable structures, and carefully planned bottom space.

Geographic origin and biotope

Pseudacanthicus sp. L-275 is attributed to the basin of the rio Xingu in Brazil, within an Amazonian environment characterized by warm, highly oxygenated water. The habitat includes rocky outcrops, boulders, crevices, and submerged wood, with little rooted aquatic vegetation in fast-flowing areas. Dense riparian forest provides shade along parts of the shoreline. In the aquarium, priority should be given to vigorous water circulation, excellent filtration, and clean water rather than heavy planting. Smooth rocks, driftwood, and secure caves are particularly useful for supporting natural shelter-seeking behavior.

Precise location and local name

The geographic reference used for Pseudacanthicus sp. L-275 is the rio Xingu in Brazil. L-275 is the main identifier used by aquarists and loricariid importers. It is also called the Leopard Cactus Pleco, referring to its spiny silhouette and spotted coloration. As with several loricariids sold under L-numbers, names may vary between catalogs. To avoid confusion with other Pseudacanthicus forms, the L-275 code should be kept together with the genus name whenever the fish is listed or sold.

Appearance and physical characteristics

Pseudacanthicus sp. L-275 has a robust, ventrally flattened body covered with bony plates. Its fins are strongly developed and bear thick spiny rays, typical of the Loricariidae. The base coloration is usually dark, with paler markings forming a spotted or leopard-like pattern. Odontodes on the body and fins enhance its rough appearance, especially in adults. The head is broad, the ventral mouth is adapted for gripping rocks, and the caudal fin is powerful. A properly maintained adult may reach approximately 30 cm in aquarium conditions.

General diet

Pseudacanthicus sp. L-275 is an omnivore with a carnivorous tendency rather than a simple algae eater. Its diet should include sinking, protein-rich pellets, bottom-feeder tablets, and frozen foods such as shrimp, krill, or bloodworms, offered in moderation. Soft vegetables may be used as a supplement, but they should not make up the entire diet. Feeding after the lights go out is often practical because the fish becomes more active then. Remove uneaten food promptly to protect water quality and reduce competition with other bottom-dwelling fish.

Essential data

• Name of original river: rio Xingu
• Local name used: Leopard Cactus Pleco
• Origin of the scientific name: Pseudacanthicus is a genus name; L-275 is an aquarium trade reference
• Full-name etymology: Pseudo means false or resembling; acanthicus refers to spines; sp. means unspecified species; L-275 is an identification and trade code
• Common or vernacular names: Leopard Cactus Pleco, leopard cactus pleco
• Family: Loricariidae
• Subfamily: Hypostominae
• Name pronunciation: soo-doh-a-KAN-ti-kuss - el two hundred seventy-five
• Discovery: aquarium reference L-275
• Maximum adult size: approximately 30 cm
• Water temperature and pH: 26 to 30 °C; pH approximately 6.0 to 7.5
• Stream appearance and surrounding vegetation: warm, oxygen-rich water, rocks, boulders, submerged wood, and riparian forest
• Typical tankmates: Amazonian midwater characins, rheophilic cichlids, and other robust loricariids of comparable size
• Temperament and behavior: generally secretive, nocturnal, and territorial toward similar bottom-dwelling fish
• Water depth: shallow to intermediate areas associated with rocks and shelter
• Sexual dimorphism: odontodes and body bristles are often more developed in adult males
• Bottom structure and flow: rocky or gravel substrate, caves and wood, with moderate to strong current

In your aquarium

To keep Pseudacanthicus sp. L-275 successfully, provide a mature, spacious aquarium with sturdy caves, smooth rocks, and well-distributed current. Oversized filtration, very clean water, and regular water changes are essential. Feed after lights-out, monitor territorial interactions, and avoid housing several large loricariids competing for the same bottom space. Because this form is Very rare, every wild specimen deserves careful acclimation and stable conditions. Its exclusive availability from Ton.Fish in Canada makes this a fish to plan for carefully rather than purchase impulsively.