Saltwater Aquarist

Dwarf Snakehead

(Channa gachua)

Dwarf Snakehead (Channa gachua) in a freshwater aquarium

Species Description…

Scientific Name: Channa gachua
Common Name: Dwarf Snakehead
Species Group: Snakehead
Tank Type: Species-only
Care Level:
Temperament: Predatory
Diet Type: Carnivore
Role in Aquarium: Predator
Max Fish Length: 8 (inches)
Min Aquarium Size: 44 (gallons)
Native Range: Very wide range from Iran and Pakistan through South and Southeast Asia to southern China, Taiwan and Bali (Channa gachua complex).
Min Temperature: 64°F
Max Temperature: 82°F
Min pH: 5
Max pH: 8
Min GH: 1 dGH
Max GH: 20 dGH
Min Group Size:
Breeding: Moderate
Lifespan: years

Overview

  • “Dwarf Snakehead” usually refers to Channa gachua. [UNVERIFIED] The name is also used for other small snakeheads such as C. bleheri and C. andrao.
  • C. gachua has a huge range from Iran to Taiwan and Bali. It is probably a complex of several similar species.
  • Grows to about 8 in (20 cm) standard length.
  • [UNVERIFIED] Owning snakeheads is restricted or illegal in many US states. Check your local laws before buying.

Feeding

  • An obligate predator that eats fish and insects in the wild.
  • Adapts to dead foods such as bloodworm, earthworms, shrimp and strips of fish. Dried foods should not be the staple.

Habitat

  • A tank with a base of 48 × 18 in (120 × 45 cm).
  • Dim light with plants, driftwood, pipes and pots for cover, plus floating plants.
  • Water: 64–82°F (18–28°C), pH 5.0–8.0, GH 1–20.

Fish Care

  • Breathes air, so leave access to the surface.
  • [UNVERIFIED] Snakeheads jump, so use a tight lid.

Compatibility

  • Best in a species tank.
  • Can live with peaceful fish too large to eat.

Aquarium Behavior

  • Juveniles live together, but adults often become aggressive toward each other.

Breeding

  • A mouthbrooder, regularly bred in captivity.
  • Some females lay infertile eggs to feed the fry.
  • Don’t mix fish from different populations, as they may hybridize.