Microctenopoma ansorgii is a small freshwater fish, known in the aquarium trade as the ornate ctenopoma, orange ctenopoma, ornate climbing perch, pretty ctenopoma, or rainbow ctenopoma. It belongs to the same genus as the spotted climbing perch (Ctenopoma acutirostre), but looks very different. Its body is more elongated and rounded, the typical shape of a fish that spends much of its time on the bottom. The ornate ctenopoma spawns at night, laying its eggs on a floating bubble nest of mucus. It lives in the slow-flowing forest streams of the Congo Basin, where it feeds on worms, insect larvae, and other aquatic invertebrates.