Pseudoplatystoma Fasciatum

Datasheet

General Description

The Barred Shovelnose, scientifically known as Pseudoplatystoma Fasciatum, is a large and predatory species of catfish that reaches a maximum size of around 104.0cm. It is known for its distinct appearance, often confused with the closely related P. tigrinum, and is commonly sold under the name "tiger shovelnose." With a lifespan of over 20 years, this species requires a considerable long-term commitment due to its rapid growth rate and eventual size.

Aquarium Setup

For housing an adult Barred Shovelnose, a tank size of at least 10,000 liters is recommended (see table). Decor is not essential, especially for adult specimens, but dim lighting is preferable. Additionally, providing large chunks of bogwood, beech branches, or smooth rocks can be beneficial. A spacious environment with open swimming areas is vital. When it comes to substrate, avoiding gravel that can be swallowed or get caught in gills is crucial. Smooth pebbles or opting for no substrate can be suitable choices. A robust biological filtration system, preferably a sump-type setup, is necessary to manage waste production from this large fish.

Behaviour

Although the Barred Shovelnose is a piscivorous species that readily consumes smaller fish, it generally exhibits peaceful behavior towards similarly-sized tank mates in spacious and appropriate tank conditions. However, it is territorial towards both conspecifics and other large Pimelodids, warranting sole representation in most setups. Compatible tank companions may include Doradids such as Oxydoras niger or Pterodoras granulosus, along with big characins and cyprinids in deeper tanks.

Feeding and Diet

In the wild, the Barred Shovelnose is a piscivore, but it can adapt to consuming dead foods in captivity. Offering a varied diet is essential to prevent the fish from becoming fixated on a single type of food. Suitable food items include prawns, mussels, cockles, lancefish, earthworms, and whole fish fillets (white fish). Overfeeding, particularly with a high-protein diet, should be avoided as it can lead to obesity and related health issues. Feeding frequency should be adjusted as the fish matures, with adult specimens requiring only one meal per week at most.

Reproduction & Dimorphism

Reproduction of the Barred Shovelnose remains unreported in the hobby, as the fish typically migrates over long distances to spawn in natural conditions that are challenging to replicate in captivity. Distinguishing between male and female specimens through external characteristics is virtually impossible. However, adult females may exhibit a stockier build compared to males.

Habitat and Distribution

The Barred Shovelnose is distributed across a wide range, including regions in Ecuador, Colombia, Venezuela, Guyana, Suriname, French Guiana, Peru, Bolivia, Brazil, and Argentina. Although unconfirmed, there are potential occurrences in Paraguay and Uruguay. These catfish thrive in diverse biotopes, from large rivers and lakes to flooded forest areas, typically favoring slower-moving habitats than many other large Pimelodids.