Chinese Snakehead (Channa asiatica)

Family: Channidae

A medium-sized predatory snakehead from southern China. Keep singly or as a pair — it will eat small tankmates.

Care parameters

Water temperature
22–28 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
16.4–23.5 cm
Minimum tank
235 L
Water layer
Bottom; rests and forages low
Difficulty
Moderate
Temperament
Predatory — best kept singly or as a pair
Origin
Southern China, northern Vietnam

Species overview

Channa asiatica, a member of the family Channidae, comes from Southern China, northern Vietnam, where it inhabits clear streams, rivers and still waters. Predatory — best kept singly or as a pair and carnivore; quality prepared foods with variety; regular frozen or live foods, it grows to 16.4–23.5 cm and adapts well to a properly set-up aquarium in the 22–28 °C range. Other Channa species in our database include Channa argus, Channa aurantimaculata, Channa gachua.

Native biotope

Habitat
Clear streams, rivers and still waters
Flow
Still to very gentle water
Dissolved O₂
Tolerates low oxygen

Aquascape & hardware

Substrate
Smooth gravel and sand with open floor space
Hardscape
Driftwood, water-worn stones and shelters that mimic the native biotope
Plants
Hardy plants on hardscape; keep the floor open

Temperament, diet & tankmates

Schooling
Solitary, pairs or small groups
Diet
Carnivore; quality prepared foods with variety; regular frozen or live foods
Avoid keeping with
  • Fish under half its size — May be eaten
  • Small fish and shrimp — Live-prey size

Breeding & notes

Sexual dimorphism
Males are typically slimmer and more intensely colored; females fuller-bodied
Breeding method
Egg-scatterer over fine plants; condition with rich foods and simulate seasonal changes

Frequently asked questions

Is the small snakehead a good first snakehead?

Yes — it is the most manageable species of the family. It still needs a large tank, a serious lid and a commitment to its predatory diet.

Will it eat my other fish?

Yes. It is an honest predator and should be housed alone or with fish too large to swallow. Do not trust size gaps — it grows fast.

Why does it gulp air at the surface?

Breathing. The suprabranchial organ lets snakeheads use atmospheric oxygen, which is why they survive in stagnant water. Regular surface visits are normal.

Can I keep a pair?

A bonded pair is the ideal setup and the path to breeding, but introduce prospective mates carefully in a large tank with visual barriers, as unmatched individuals may fight.

Are snakeheads legal to keep?

That depends on your jurisdiction — several countries and regions restrict snakeheads because of invasive records; verify local rules before acquiring any Channa.