Snakehead Betta

Geographic Origin and Biotope: Endemic to the Mahakam River basin in East Kalimantan (Indonesian Borneo). Inhabits shallow forest streams, peat swamps and flooded areas with dense decaying leaf litter and dark, acidic water.

Taxonomy and Morphology: Snakehead Betta (Betta channoides). Wild Betta closely related to B. albimarginata. The name "channoides" derives from the shape of the head, broad and massive, resembling that of Channa (snakeheads).

Social Behavior: Compared to other Bettas, it is noticeably peaceful and gregarious. Can be kept in pairs or small groups if there is enough space. Males may "display" by puffing out their throats, but rarely injure each other.

Coloration and Sexual Dimorphism: Males sport a deep brick-red or orange body with fins very sharply bordered by a black band and a pure white outer edge. Females are brownish-gray and much less conspicuous.

Aquarium Setup: Dedicated aquarium ("Blackwater" biotope) starting from 45 cm (18 inches). Mandatory a bottom of catappa, oak or beech leaves, intricate branches and low light. Sealed lid: they are formidable jumpers and need warm, humid air above the water.

Diet and Feeding: Insectivorous micro-predator. Feed predominantly with small live and frozen foods (Daphnia, Artemia, mosquito larvae, bloodworms). Rarely or with difficulty accepts commercial dry food.

Water Quality: Demands blackish, acidic (pH 4.0-6.5) and very soft waters, rich in humic acids. Extremely sensitive to pollutants and fluctuations in chemical parameters.

Compatibility and Tankmates: Ideal in a species-only tank. In a community only with fish of similar size and equally calm and suited to "blackwaters", such as small Rasboras (Boraras) and Pangio. Never with fast or aggressive fish.

Aquarium Reproduction: Paternal mouthbrooder. The male holds the eggs in his mouth (10 to 21 days depending on temperature) without eating, and then releases fully formed fry.

Risks and Diseases: Sensitive to Oodinium and bacterial infections if kept in overly hard and alkaline waters. A frightened or stressed incubating male may swallow or spit out the young prematurely.