Osphronemus exodon

Osphronemus exodon is one of four recognised Giant Gourami species, distinguished from O. goramy by its toothed jaws and preference for blackwater river systems in Borneo. It can attain a large size and requires a very large, well-filtered aquarium. Its bold personality and impressive size make it a centrepiece species for dedicated large-tank hobbyists.

Water: temp 22–28°C, pH 6.0–7.0, soft, tannin-stained water preferred. Tank: minimum 500L for adult fish; provide large open areas and sturdy décor. Feeding: omnivore — accepts large pellets, earthworms, fruit, prawns, and plant material. Behaviour: semi-aggressive; territorial towards conspecifics; predatory towards small fish. Compatibility: best kept alone or with large, robust fish only.