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Encyclopedia / Oddballs & Predators / Black snakehead
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Variations

1 kinds · tap one for a closer look

Black snakehead

Channa melasoma · Melasoma

Predatory and territorial; best kept alone or with a mate.

Local price coming soon
· real AED shop prices, never conversions
30 cmBody length, without tail ✓
22–28 °CTemperature ✓
4.5–6.5pH ✓
243 LSmallest tank ✓
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Tank mates
Check your own mix →
✕Not recommended
  • Black snakehead eats animals up to about 12 cm. Neon tetra only grows to 2.5 cm.
✕Not recommended
  • Black snakehead eats animals up to about 12 cm. Cardinal tetra only grows to 3 cm.
✕Not recommended
  • Black snakehead eats animals up to about 12 cm. Black neon tetra only grows to 3.2 cm.
!With conditions
  • Only a narrow pH range suits both: exactly 6.5.
!With conditions
  • Only a narrow pH range suits both: exactly 6.5.
✓Compatible
✓Compatible
✓Compatible
✓Compatible
✓Compatible

64 species in our list are a good match.

Facts checked against sources on 16 Oct 2026. ✓ means a source backs it; ? means no reliable source yet. See sources

Care and water

Hardness ✓1–5 dGH
Group size ?Can live alone
Temperament ?Aggressive
Swims at ?All levels
Care level ✓Moderate
Diet Carnivore
Lifespan ?Unknown
Size in shops 6–12 cm
Growth Medium

Behavior

Predatory and territorial; best kept alone or with a mate.

Check your local laws. US: all live snakeheads (genera Channa and Parachanna, family Channidae) and their viable eggs are injurious wildlife under the Lacey Act (listed 4 Oct 2002, 50 CFR 16.13); importation into the US and interstate transportation or acquisition are prohibited without a USFWS permit. It is named in the list. Check the rules where you live before you buy one, and never release it into the wild.

Food

Fish, prawns and large pellets.

Tap a food to see what it is.

Male or female

MaleMales are often slimmer with a more colourful, longer dorsal; females are fuller-bodied
FemaleRounder in the belly when ripe
TipVent shape and body fullness; hard to tell young fish
How hard to tellHard

Health

Common problems. Tap one to see the signs. This is a guide, not a diagnosis.

Breeding

Egg-guarder ·

Parents guard eggs.

Pairing

A pair in a spacious tank.

Setup

500 L tank with leaf litter, wood and plants.

What starts it

Warm water and heavy feeding.

Eggs

Hundreds of eggs.

Raising the fry

Fry feed on baby brine shrimp.

Common mistakes
  • Using hard water
  • Mixing males
Full breeding guide, day-by-day plan and simulator →

Where it lives in the wild

Borneo peat swampsSumatra and Malay PeninsulaLoading the map…
Native range (rough area)Centre of the rangePlaces on the World Map
RegionMalay Peninsula, Sumatra & Borneo
HabitatPeat-swamp and blackwater streams
Native rangeAbout 1,200 km across
Open on the World Map

The story of the black snakehead

A dark, soft-water snakehead of forest streams and peat swamps from southern Thailand, Malaysia, Singapore, Borneo, Sumatra and the Philippines; dark greenish or bluish above, paler below, and young fish have a red stripe from snout to tail.

Pieter Bleeker described this dark snakehead in 1851. It is a secretive species of acidic swamp forests.

First described by Pieter Bleeker in 1851. Named for 'Melasoma' means black body.

  • It lives in very soft, acidic water.
  • It is mostly black with a dark-edged tail.
  • It stays moderately small for a snakehead.

Sources

13 facts checked with sources

  • Scientific name

    Often confused with C. baramensis of Borneo (once a synonym; it has a black spot on many scales and a barred tail fin above 12 cm SL) and with C. cyanospilos. Misspelled 'melanosoma' in older literature.

    Eschmeyer's Catalog of Fishes: Channa species list (Channa melasoma) · FishBase: Channa melasoma summary · Seriously Fish: Channa melasoma
  • Familycorrected

    Legacy has no family. Order Anabantiformes.

    FishBase: Channa melasoma summary
  • Size

    Both give 30 cm SL.

    Seriously Fish: Channa melasoma · FishBase: Channa melasoma summary
  • Temperature

    Legacy 22-28 °C lies inside Seriously Fish's 22-32 °C.

    Seriously Fish: Channa melasoma
  • pH

    Legacy 4.5-6.5 lies inside 4.0-7.0.

    Seriously Fish: Channa melasoma
  • Hardnesscorrected

    Legacy has no hardness. Soft water.

    Seriously Fish: Channa melasoma
  • Smallest tankcorrected

    120 x 45 cm base x 45 cm height = 243 L (Seriously Fish's figure). Legacy 500 L not supported as a minimum.

    Seriously Fish: Channa melasoma
  • Group size

    Seriously Fish's social rating says 'in a pair' with no supporting text; whether it can live singly is not stated.

    Seriously Fish: Channa melasoma
  • Swimming level

    No swimming level stated; mainly nocturnal. Obligate air-breather: needs constant access to the surface and a tight lid with an air gap.

    FishBase: Channa melasoma summary
  • Care levelSeriously Fish: Channa melasoma
  • Where it livescorrected

    Records from the Chao Phraya and Mekong may be misidentifications or introductions (Seriously Fish); FishBase still says 'Mekong in Thailand to Indonesia and the Philippines'. IUCN: Least Concern (2020).

    Seriously Fish: Channa melasoma
  • Storycorrected

    Range is wider than 'Borneo and Sumatra'. 'Dark bars' not supported (C. baramensis, a look-alike, has a barred tail). 'Often sold as hardy' not checked.

    Seriously Fish: Channa melasoma · FishBase: Channa melasoma summary
  • traits.legal

    US rule cited from the current eCFR text (amended 67 FR 62203, 4 Oct 2002). Many US states also ban possession; state rules, EU, UK, Canada and Australia were not checked for this species.

    eCFR 50 CFR 16.13 (US injurious wildlife: fish)