Redfin Congo Tetra Care Guide
Micralestes occidentalis · Freshwater Fish

What Redfin Congo Tetra look like
Micralestes occidentalis, commonly known as the Redfin Congo Tetra, exhibits a laterally compressed, fusiform body shape that typically reaches a maximum adult size of approximately 3 inches (7.5 cm). The species is characterized by its striking silver body, which serves as a reflective backdrop for its vivid red fins, particularly prominent in the caudal and anal fins. Sexual dimorphism is subtle; males tend to display slightly more vibrant coloration and elongated fins compared to females. Defensive adaptations include a streamlined body that allows for rapid escape from predators, as well as the ability to school tightly, enhancing safety in numbers. Unique morphological features include a well-developed lateral line system, which aids in detecting water movements, and small, sharp dentition suited for a varied diet.
Behavior & temperament
The Redfin Congo Tetra is a highly social species, typically found in large, active schools within the pelagic zone of West African rivers. This schooling behavior not only provides safety from predators but also facilitates social interactions and breeding. They exhibit a peaceful temperament, making them suitable for community tanks, although males may display mild aggression during breeding periods. Breeding behavior involves egg scattering, where females release eggs in open water, allowing fertilization by males. This species prefers to inhabit the mid to upper water column, often darting among aquatic vegetation and submerged structures.
Diet & feeding
In the wild, Micralestes occidentalis is an omnivorous feeder, consuming a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, they thrive on a balanced diet that includes high-quality flake foods, live or frozen foods such as brine shrimp and daphnia, and occasional vegetable matter to ensure optimal health.
Behind the name
Micralestes (small and slender); occidentalis (western).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Redfin Congo Tetra?
AquaLens identifies your fish and plants from a photo, tracks water chemistry, and flags health issues early — free on iOS and Android.



