Ctenopoma (African Bushfish)

Ctenopoma kingsleyae, commonly called the African bushfish or tailspot ctenopoma, is a widespread labyrinth fish found across freshwater habitats of West and Central Africa. As a member of the anabantoid group, it shares the labyrinth organ found in gouramis and climbing perch, allowing it to gulp atmospheric air and survive in stagnant, vegetated swamps and floodplain pools with low dissolved oxygen. Its drab, mottled coloration provides excellent camouflage among submerged branches and leaf litter, where it lies in ambush waiting for prey to pass. A prominent dark spot near the tail base, resembling an eyespot, is a useful identifying feature. It is a hardy but predatory species, unsuitable for housing with smaller tankmates.

• Elongated, laterally compressed body in mottled brown, olive, and tan tones
• Distinct dark ocellus (eyespot) at the base of the caudal fin, a key identifying mark
• Large, upturned mouth adapted for ambush feeding on prey up to half its own length
• Spiny anterior dorsal fin rays transitioning to soft rays posteriorly
• Mottled pattern provides camouflage against submerged wood and vegetation
• Similar in shape to the leopard bushfish but with less rounded body and coarser blotching rather than fine spots

Ctenopoma kingsleyae ranges widely across West and Central Africa, from Senegal east to the Congo basin and south into parts of Angola. It inhabits slow-moving rivers, swamps, floodplain lagoons, and densely vegetated backwaters with submerged wood, leaf litter, and overhanging cover. These habitats are often warm and low in dissolved oxygen, especially in the dry season, conditions its labyrinth organ is well suited to tolerate. It favors turbid or tannin-stained water where its mottled camouflage is most effective. During seasonal flooding it disperses into newly inundated floodplains, retreating to permanent channels and pools as waters recede.

The African bushfish is a solitary ambush predator, remaining motionless among cover before striking suddenly at passing fish, insects, and other small prey with a rapid gape of its large mouth. It is largely nocturnal or crepuscular, becoming more active at dusk and after dark. Like other anabantoids it regularly surfaces to gulp air via its labyrinth organ, particularly in warm, oxygen-depleted water. Males build bubble nests among floating vegetation or debris to house eggs after spawning, guarding the nest and fanning the eggs until they hatch. Juveniles tend to be more tolerant of conspecifics, while adults become increasingly territorial and predatory toward smaller fish as they mature.