False Corydoras

Adults of this species reach just over 5 cm in length. Their coloration is a light grey background with yellow hues, complemented by black strokes on the dorsal fin and head. Small dark speckles can be seen all over the body. The catfish received its alternative name due to its appearance, which resembles Corydoras imitator. Indeed, there is a similarity between these two species, especially in color scheme, but Brachyrhamdia differs in its less stocky build, and its barbels are noticeably longer and more filamentous.

The species inhabits South America, primarily in the Caura River basin, a tributary of the Orinoco in Venezuela. The fish prefer bodies of water with flowing currents, where they stay in the bottom layers. The natural habitat is characterized by soft to moderately hard water with neutral or slightly acidic pH levels.

This fish species exhibits a peaceful nature and a complete absence of aggression. It coexists perfectly with its conspecifics and with other species of comparable size, such as tetras, rasboras, and rainbowfish, including Corydoras. However, it is worth considering the feeding preferences of Brachyrhamdia imitator: it can pose a danger to fry and very small fish up to 2 cm in length. There are observations that tetras become its victims more often if the conditions are the same for all species.

For a small group of 3–4 catfish, an aquarium of 70–80 liters will be optimal. Since the False Corydoras is a bottom-dweller, special attention should be paid to the lower level when decorating the aquarium. It is recommended to create an alternation of open spaces with shelters, using snags, rock formations, or various natural/artificial decor. Floating plants on the surface will help provide the necessary shading, as Brachyrhamdia imitator avoids overly bright lighting. This catfish successfully adapts to various conditions and can comfortably live in a fairly wide range of hydrochemical parameters, which significantly simplifies the process of water preparation and general aquarium maintenance.

This species is omnivorous, and the epithet “voracious” is quite applicable to it. It is important to avoid overfeeding. It is recommended to offer sinking foods that contain a large amount of protein components. It will not miss an opportunity to feed on the fry of other fish.

Breeding is not documented. The species is known above all for mimicking Corydoras: in the wild it keeps to their shoals, and it is usually imported together with them. No external sexual differences have been described, and all fish in the trade are wild-caught.

Like other scaleless members of the family, these catfish are extremely sensitive to water quality and substrate composition. The main risks are associated with damage to their delicate skin, which opens the way for bacterial and fungal infections. Prevention includes maintaining cleanliness in the aquarium, using a soft substrate without sharp edges, and regular water changes.

When selecting individuals, attention should be paid to the integrity of the fins and the absence of visible skin damage. Healthy fish should be active, show no signs of emaciation or sunken belly. It is important to consider that this species is prone to intraspecific aggression, so it is recommended to acquire a group of fish to reduce stress and correct behavior.