The Long-finned Alestes, scientifically known as Brycinus longipinnis, is a striking freshwater fish native to the rivers and lakes of West Africa, particularly renowned for its energetic behavior and attractive appearance. This species belongs to the Alestidae family, which is closely related to characins, including tetras, known for their active swimming and schooling behavior.

Brycinus longipinnis is characterized by a sleek, streamlined body and notably long fins, especially the dorsal and anal fins, which are typically elongated and beautifully edged with vibrant colors that can range from red to orange. The body is generally silvery with a hint of green or blue iridescence, making it particularly eye-catching when under appropriate aquarium lighting.

In captivity, Long-finned Alestes thrive in a setup that mimics their natural riverine habitat. The aquarium should be spacious to accommodate their active swimming lifestyle and include areas of both open water and dense vegetation. Plants can be real or artificial but should be arranged to provide shelter and a sense of security while still allowing ample space for swimming.

The water quality needs to be maintained meticulously, with a temperature that mimics tropical conditions and a neutral to slightly acidic pH. Regular water changes are crucial to remove toxins and keep the water fresh, supporting the health of the fish. Adequate filtration is also essential to handle the bioload of a potentially large and active community.

Diet-wise, the Long-finned Alestes is omnivorous but shows a preference for a carnivorous diet, primarily feeding on insects, small crustaceans, and other zooplankton in their natural environment. In the aquarium, their diet should consist of high-quality flake foods, supplemented with live or frozen foods such as bloodworms, brine shrimp, and daphnia. The inclusion of some vegetable matter or algae-based foods will ensure a balanced diet.

Breeding Brycinus longipinnis in captivity can be challenging but rewarding. They are typically open water spawners, releasing their eggs during swimming, which then scatter among vegetation or settle in the substrate. Creating the right breeding conditions involves simulating the rainy season through changes in water temperature and chemistry, often triggering spawning behavior.

Overall, the Long-finned Alestes is an attractive and lively addition to a suitably sized community aquarium, best suited for aquarists with some experience who can cater to their needs for space and water quality. Their dynamic presence and striking appearance make them a favorite among enthusiasts of African riverine fish.