The Blue-Green Lampeye, Procatopus aberrans, is a captivating species of freshwater fish within the family Procatopodidae, known for its striking iridescent blue and green colors that shimmer under appropriate lighting. Originating from the fresh and brackish waters of West Africa, specifically regions like Nigeria and Cameroon, this species is well-regarded for its peaceful nature and the subtle beauty it brings to the home aquarium.

Blue-Green Lampeyes are small, reaching sizes that make them perfect inhabitants for community tanks with similarly sized and tempered species. Their preference for densely planted environments, mimicking the vegetated waters of their natural habitat, suggests that an aquarium setup for Procatopus aberrans should include plenty of live plants, driftwood, and other hiding spots. These features not only provide shelter but also replicate the visual complexity of their natural surroundings, contributing to the fishes' overall well-being.

The diet of the Blue-Green Lampeye is omnivorous, encompassing a wide range of food sources. In captivity, they should be provided with a balanced diet that includes small live or frozen foods such as brine shrimp and daphnia, alongside high-quality flake foods or micro pellets. This dietary variety is crucial for maintaining their health and enhancing the vibrant colors that make them so appealing.

Breeding Procatopus aberrans in the home aquarium is achievable and can be quite rewarding. They are non-annual killifish, meaning their breeding does not require the drying and re-wetting cycle associated with some other killifish species. The Blue-Green Lampeye will scatter their eggs among fine-leaved plants or a spawning mop, and while they are not known to be aggressive towards their fry, optimal fry survival is often achieved by relocating the eggs or fry to a separate rearing tank.

Caring for Blue-Green Lampeyes involves maintaining clean water conditions with regular water changes to keep water parameters stable. Soft, slightly acidic to neutral water is ideal, reflecting the conditions of their natural habitat. Gentle filtration that provides clean, well-oxygenated water without creating strong currents is beneficial, as it prevents stress and allows these small fish to thrive.

In summary, Procatopus aberrans offers an opportunity for aquarists to keep a uniquely beautiful and peaceful species that brings a dynamic visual element to the freshwater aquarium. Their care, while straightforward, requires attention to diet, tank setup, and water quality, but rewards the dedicated hobbyist with the serene beauty of these iridescent fish, enhancing the diversity and appeal of any community aquarium.