Striped snakehead

Quick facts

Adult size

90 cm, 5000 g typical harvest weight

Days to harvest

270 to 365 days from fingerling

Lifespan (max)

up to 8 years

Diet

carnivore

Temperature class

warm-water

Difficulty

intermediate

Water parameters

Temperature range

20–32°C (optimum 28°C)

pH

6 to 8.5

Hardness

3 to 25 dGH

Minimum tank

1000 L per individual at harvest size

Feed and growth

Feed protein

45% target

Daily feed (warm water)

2.00% of body weight per day

Daily feed (cool water)

0.50% of body weight per day

Max stocking density

60 g per litre of system water

A 5000g adult eats about 100.0 g of feed per day at optimum temperature. For a roster of 10 fish at adult size, that's around 1000 g of feed daily.

Legality

Aquaculture and possession rules vary by jurisdiction and change over time. This table reflects regulations as of the verified date on each row. Verify with your local fisheries or wildlife authority before stocking.

Jurisdictions not listed here default to "check local regulations". A non-listing is not a green light; rules in your specific county or municipality may apply.

Habitat and origin

A group of predatory freshwater fish in the family Channidae, native to Africa and Asia. The most commonly cultured species are Channa striata (striped snakehead) and Channa micropeltes (giant snakehead) from Southeast Asia, and Channa argus (northern snakehead) from China and Korea. Snakeheads are obligate air-breathers with a suprabranchial organ that allows them to survive in oxygen-depleted water and even travel short distances overland. Adults of cultured species range from 40 cm (C. striata) to over 1 m (C. micropeltes). Snakeheads are among the most important food fish in Southeast Asia, with C. striata being especially valued in traditional medicine and cuisine across Thailand, Vietnam, Cambodia, and Indonesia. The flesh is white, firm, and relatively boneless. Snakeheads are highly invasive outside their native range; established populations of C. argus in the eastern US have prompted aggressive eradication efforts.

Climate and outdoor ponds

Climate classification

tropical (needs warm water year-round)

Outdoor pond zones (USDA)

10 to 13 (winter low around -1°C or warmer)

Heating in a temperate climate

Required for year-round operation

Cooling in a temperate climate

Not required

Zone bounds reflect year-round outdoor pond viability with no active heating. Anywhere outside the bounded zone, the species can still be kept in an indoor heated tank or a seasonally-managed system. Verify your specific microclimate, as a sheltered yard zone can run a half-zone warmer than the regional rating.

Care notes

A warm-water food fish for tropical aquaponics, primarily in Southeast Asian contexts. Temperature range: 20–32°C, optimal at 26–30°C. Growth of C. striata: 300–600 g in 8-12 months on high-protein pellet (40-48% protein) or live/frozen fish. FCR on pellet is 1.3-1.8. Snakeheads are predatory and prefer live or fresh food; pellet training is possible but requires starting with small fingerlings. Air-breathing means they survive dissolved oxygen crashes that kill other species. Stocking density can be high (20-40 g/L) because the air-breathing reduces dependence on dissolved oxygen in the water. They're aggressive and cannibalistic; strict size-grading is essential. In the US, snakeheads are federally classified as injurious wildlife under the Lacey Act, and importation, transport, and culture of live snakeheads is illegal in most states. Several other countries also prohibit snakehead culture. Where legal (Southeast Asia, China, parts of Africa), snakeheads are a productive, resilient, and culturally valued aquaponics species. The regulatory prohibition in most Western countries makes them irrelevant for aquaponics outside tropical Asia and Africa.

Further reading

• Aquaponics water chemistry: balancing pH for fish and plants
• Fish for aquaponics: tilapia vs everything else