Leopard Bush Fish

The leopard bushfish, Ctenopoma acutirostre, is a distinctive anabantoid native to the slow-moving swamps and backwaters of the Congo River basin in Central Africa. Its common name comes from the dense pattern of dark, irregular spots covering its tan-brown body, which closely resembles a leopard's coat and provides effective camouflage among submerged wood and leaf litter. Like its relatives, it possesses a labyrinth organ enabling it to breathe air at the surface, an adaptation for the low-oxygen, densely vegetated waters it inhabits. A patient ambush predator, it remains motionless for long periods before striking quickly at passing prey. It is popular in the aquarium trade but requires larger tankmates due to its predatory nature.

• Deep, rounded body shape more compressed than most other Ctenopoma species
• Tan to brown base color densely covered with dark, irregular leopard-like spots
• Large, upturned mouth capable of engulfing prey nearly its own size
• Pointed snout and slightly concave head profile
• Broad, rounded fins including a fan-shaped caudal fin
• Distinguished from Ctenopoma kingsleyae by its rounder body and fine spotting rather than blotchy mottling with a single tail eyespot

The leopard bushfish is endemic to the Congo River basin in Central Africa, inhabiting slow-flowing tributaries, flooded forest pools, swamps, and vegetated backwaters. It favors warm, soft, often blackwater conditions stained by tannins from decaying leaves and wood, with low water flow and abundant submerged cover such as branches, roots, and leaf litter. These environments are frequently low in dissolved oxygen, a condition its labyrinth organ allows it to tolerate by gulping air at the surface. It tends to remain hidden among structure during the day, relying on its spotted camouflage, and is most active around dusk in its dim, densely vegetated habitat.

Leopard bushfish are solitary, nocturnal-leaning ambush predators that lie motionless among submerged wood or plants, using their spotted camouflage to remain undetected until prey ventures close. They then strike with a rapid, wide gape, engulfing fish, insects, and other invertebrates. Juveniles are more tolerant of company, but adults become territorial and predatory, often eating tankmates or conspecifics small enough to swallow. Like other anabantoids, they surface periodically to breathe air via their labyrinth organ, especially in warm, low-oxygen water. Males construct bubble nests at the water's surface for spawning, guarding the eggs and fry until they become free-swimming.