Walking snakehead

The Ceylon snakehead is a fascinating dwarf species endemic to the southwestern 'wet zone' of Sri Lanka, where it is restricted to the Bentota and Kelani River systems and the Kottawa Forest Reserve. Unlike its larger relatives, this species reaches only 9-10 cm (3.5-4 inches) in standard length, making it one of the few genuinely dwarf snakeheads available in the hobby. It is an endangered species in the wild due to severe deforestation of its native rainforest habitat, and a European import ban on wild Channa species is in place.

This is an obligate predator that feeds on smaller fish and insects. It adapts well to dead alternatives in captivity, accepting bloodworm, earthworms, chopped prawn, mussels, and strips of fish flesh, though dried foods should never form the staple diet. A pair requires a tank of at least 80 litres with a tightly-fitting lid. The aquarium should be dimly lit with surface vegetation such as Ceratopteris, driftwood roots, branches, and dried leaf litter to create shaded spots. Notably, this species does best with infrequent water changes — some keepers perform changes only monthly — as it originates from stable, slow-moving waters with natural organic build-up.

Water conditions: 16-24°C, pH 5.0-7.5, with soft to moderately hard water. The Ceylon snakehead exhibits remarkable parental care: the male is a paternal mouthbrooder, holding eggs in his mouth for safety, while the female produces infertile 'trophic' eggs to feed the fry. This rare reproductive strategy makes it a highly sought-after species for dedicated snakehead enthusiasts. Its manageable size and unique behaviour make it an excellent choice for the specialist aquarist interested in conservation and captive breeding of an endangered species.