Giant Snakehead

Geographic Origin and Biotope: Southeast Asia (Thailand, Malaysia, Indonesia, Vietnam). Prefers large deep rivers, canals and lakes. Also survives in hypoxic stagnant waters.

Taxonomy and Morphology: Giant Snakehead / Red Snakehead (Channa micropeltes). The most massive and ravenous of the snakeheads. Easily exceeds a meter in length (100-120 cm / 40-48 inches) for 20 kg (44 lbs) of weight. Huge jaw armed with thick pointed teeth.

Social Behavior: Solitary alpha predator. Famous for attacking on sight anything that moves in the water, including dogs or humans if perceived as a threat (particularly in defense of the nest in the wild).

Coloration and Sexual Dimorphism: Deceptive coloration: juveniles, sold in stores, are beautiful with horizontal red/orange bands. Growing up, the red disappears and they become brownish-gray with a broken black line. Dimorphism not obvious.

Aquarium Setup: Incompatible with 99% of domestic aquariums. Requires custom shatterproof acrylic tanks AT LEAST 3-4 meters (10-13 feet) in length, screwed-down lids weighing dozens of kilos (breaks glass to jump) and ultra-protected equipment.

Diet and Feeding: Macro-eater and shredder. Must be fed whole dead fish (tilapia, trout), large amphibians and crustaceans. Live feeding leads to unnecessarily frantic behavior and atrociously pollutes the water.

Water Quality: Lightning-fast growth in warm tropical waters (26-30°C / 79-86°F). The filtration system must be monumental: the feces and organic leftovers of a one-meter predator kill the aquarium if not managed by huge Sumps.

Compatibility and Tankmates: SOLITARY. Will systematically attempt to dismember and swallow any companion, even of larger size. Can severely bite armored fish (Plecostomus) breaking their spine.

Aquarium Reproduction: Unimaginable due to space and aggression issues in captivity. In nature they create clearings by cutting reeds with their teeth, the parents surround a cloud of thousands of red fry attacking any intruder with bestial fury.

Risks and Diseases: Human Physical Danger: bites inflicted by the jaws of an adult cause deep lacerated wounds requiring surgical suture. NEVER stick bare hands in the tank. Species banned almost everywhere as invasive.