spannus

Spannus is a genus of small, often brightly colored, tropical fish belonging to the family Centrarchidae. The name "Spannus" is derived from the Greek word "spanos," meaning "spotted," reflecting the distinctive markings on many species within the genus. These fish are native to the freshwater habitats of Central and South America, particularly in the Amazon and Orinoco river basins.

The genus Spannus includes several species, each with unique characteristics. One of the most well-known species is Spannus auratus, commonly known as the golden spannus. This species is notable for its vibrant golden coloration and the distinctive black spots that adorn its body. Another species, Spannus maculatus, is recognized for its striking blue and yellow coloration, with prominent black spots.

Spannus species are typically small, with most species reaching lengths of 5 to 10 centimeters. They are omnivorous, feeding on a variety of small invertebrates and plant material. Due to their small size and vibrant appearance, Spannus species are popular among aquarium enthusiasts, who often keep them in community tanks with other peaceful fish.

The conservation status of Spannus species varies. Some species are considered vulnerable or endangered due to habitat loss and pollution, while others are more abundant and widespread. Conservation efforts are ongoing to protect the habitats of these fish and ensure their survival in the wild.