The Ornate Paradise Fish is a small freshwater fish endemic to Sri Lanka, found mainly in the shaded forest streams, marshes, and swampy wetlands of the island’s wet zone. It prefers slow-moving, acidic waters rich in leaf litter, submerged roots, and dense aquatic vegetation, where it remains well hidden among natural cover. Like other gouramies, it possesses a labyrinth organ that allows it to breathe atmospheric air, enabling it to survive in waters with low dissolved oxygen. This shy and peaceful species is generally solitary or found in pairs and is most active in sheltered habitats. It feeds on small aquatic insects, insect larvae, tiny crustaceans, worms, and other microscopic aquatic invertebrates. During the breeding season, the male builds and guards a bubble nest among floating plants or other sheltered locations until the eggs hatch. Due to its restricted distribution and dependence on undisturbed forest wetlands, the Ornate Paradise Fish is considered one of Sri Lanka’s most remarkable endemic freshwater fishes and an important species for the conservation of the island’s wet-zone ecosystems.