The Long-nosed Distichodus, scientifically known as Distichodus lusosso, is a distinctive species of fish native to the freshwater rivers and streams of Central Africa, particularly within the Congo Basin. This species belongs to the Distichodontidae family, known for their diverse and often strikingly patterned members, which play various roles in their native ecosystems, from grazing on vegetation to preying on smaller fish.

Distichodus lusosso is noted for its elongated snout and robust body, with adult sizes typically ranging up to about 12 inches in captivity, though they can grow larger in the wild. The body of the Long-nosed Distichodus is usually silver or gray with a series of darker vertical bars or bands, which help camouflage it in its natural habitat. The fish also sports a dorsal fin that is often edged in red or orange, adding to its visual appeal.

In terms of aquarium care, Long-nosed Distichodus requires a large tank to accommodate its potential size and active swimming habits. The tank setup should include plenty of space for swimming as well as areas with dense vegetation or decorations that mimic submerged roots or branches, which provide hiding spots and add complexity to the environment. The substrate should ideally be of a finer grade to prevent injury to the fish as it searches for food.

The water conditions for Distichodus lusosso should closely replicate those found in their natural riverine habitats. This includes maintaining a temperature in the tropical range, soft to moderately hard water, and a slightly acidic to neutral pH. Regular water changes and efficient filtration are necessary to keep the water clean and well-oxygenated, as this species can be sensitive to poor water quality.

Diet-wise, the Long-nosed Distichodus is omnivorous but leans towards a herbivorous preference, consuming a large amount of plant material in the wild. In the aquarium, their diet should include high-quality vegetable-based foods, such as spirulina flakes and blanched vegetables like spinach and zucchini. These should be supplemented with occasional meaty foods like bloodworms or brine shrimp to ensure a balanced diet and to keep the fish in optimal health.

Breeding Distichodus lusosso in captivity is quite rare and not well-documented. Like many larger fish species, breeding may require specific triggers such as changes in water temperature or flow that mimic seasonal variations in their natural habitat.

Overall, the Long-nosed Distichodus is a fascinating and relatively challenging fish to keep, requiring a dedicated aquarist with the resources to provide a large, well-maintained aquarium. Its striking appearance and unique behaviors make it a noteworthy addition to a collection, especially for those interested in the diverse fish species of the African continent.