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Encyclopedia / Oddballs & Predators / Ocellated snakehead
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Variations

1 kinds · tap one for a closer look

Ocellated snakehead

Channa pleurophthalma · Pleurophthalma, Eyespot snakehead

Predator; keep alone.

Local price coming soon
· real AED shop prices, never conversions
40 cmAdult size ✓
22–28 °CTemperature ✓
6–7.5pH ✓
864 LSmallest tank ✓
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Tank mates
Check your own mix →
✕Not recommended
  • Ocellated snakehead eats animals up to about 15 cm. Neon tetra only grows to 2.5 cm.
✕Not recommended
  • Ocellated snakehead eats animals up to about 15 cm. Cardinal tetra only grows to 3 cm.
✕Not recommended
  • Ocellated snakehead eats animals up to about 15 cm. Black neon tetra only grows to 3.2 cm.
!With conditions
  • Rift lake cichlids like frontosa need hard, alkaline water and a busy, cichlid-only tank.
  • Their pH needs don't quite meet (6–7.5 vs 8–9). Aim between the two and keep it steady.
!With conditions
  • Only a narrow temperature range suits both: 27–28 °C.
✓Compatible
✓Compatible
✓Compatible
✓Compatible
✓Compatible

88 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 ✓2–12 dGH
Group size ?Can live alone
Temperament ?Aggressive
Swims at ✓Middle
Care level ✓Moderate
Diet Carnivore
Lifespan ?Unknown
Size in shops 8–15 cm
Growth Medium

Behavior

Predator; keep alone.

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

Mature males are slimmer than females; males tend towards a bluish colour pattern, females greenish.

Health

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

Breeding

Egg-guarder ·

Not recorded in aquaria. In the wild, fish living in groups form temporary pairs that leave the group to spawn among marginal vegetation and then return; there is presumably no parental care.

Pairing

A pair in a large tank.

Setup

1,000 L tank with plants and caves.

What starts it

Warm temperatures and heavy feeding.

Eggs

Hundreds of eggs.

Raising the fry

Fry feed on baby brine shrimp and small live foods.

Common mistakes
  • Insufficient space
  • Mixing with other fish
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
RegionSumatra & Borneo
HabitatBlackwater rivers and peat-swamp streams
Native rangeAbout 900 km across
Open on the World Map

The story of the ocellated snakehead

A metallic-green snakehead from Sumatra and Borneo with three or four large orange-ringed eyespots (ocelli) along each flank, plus one on the gill cover and one at the tail base. Juveniles are striped and grow to about 35-40 cm.

Pieter Bleeker described this snakehead in 1851. Its row of large eye-spots along the body makes it one of the most distinctive snakeheads.

First described by Pieter Bleeker in 1851. Named for 'Pleurophthalma' means eyes on the side, after its eye-spots.

  • It has two or three large eye-spots ringed in orange on each side.
  • It prefers soft, acidic blackwater.
  • It is a relatively calm, open-water snakehead.

Sources

16 facts checked with sources

  • Scientific name

    Spelling pleurophthalma per Catalog of Fishes and Seriously Fish (the US rule spells it 'pleurophthalmus'). Seriously Fish: also called 'orange-spotted snakehead', the same common name the legacy data gives C. aurantimaculata.

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

    Legacy has no family. Order Anabantiformes.

    FishBase: Channa pleurophthalma summary
  • Size

    FishBase 40 cm TL; Seriously Fish 35 cm SL (similar once the tail is added). Larger figure kept; matches legacy.

    FishBase: Channa pleurophthalma summary · Seriously Fish: Channa pleurophthalma
  • TemperatureSeriously Fish: Channa pleurophthalma
  • pHcorrected

    Legacy 5.0-7.0 is lower than Seriously Fish's range.

    Seriously Fish: Channa pleurophthalma
  • Hardnesscorrected

    Legacy has no hardness.

    Seriously Fish: Channa pleurophthalma
  • Smallest tankcorrected

    240 x 60 cm base x 60 cm height = 864 L (Seriously Fish's figure); needs open swimming length more than volume.

    Seriously Fish: Channa pleurophthalma
  • Group size

    Seriously Fish's social rating is 'shoal', yet it warns that groups may turn on tankmates; no clear minimum group can be given. Legacy 'keep alone' not confirmed.

    Seriously Fish: Channa pleurophthalma
  • Temperament

    Shy and wary rather than aggressive, but predatory; no single temperament label fits the source.

    Seriously Fish: Channa pleurophthalma
  • Swimming levelcorrected

    Open-water (pelagic) swimmer, unlike most snakeheads. Obligate air-breather: needs constant access to the surface and a tight lid with an air gap.

    Seriously Fish: Channa pleurophthalma
  • Care level

    Needs a very large tank. Seriously Fish: young fish are very sensitive to water changes.

    Seriously Fish: Channa pleurophthalma
  • Where it livescorrected

    Legacy story says 'Southeast Asian'. IUCN: Near Threatened (2019) per FishBase.

    Seriously Fish: Channa pleurophthalma · FishBase: Channa pleurophthalma summary · Eschmeyer's Catalog of Fishes: Channa species list (Channa pleurophthalma)
  • Male or femalecorrected

    Legacy 'slimmer males' confirmed; dorsal-fin claim not in source; colour difference added.

    Seriously Fish: Channa pleurophthalma
  • Breedingcorrected

    Legacy 'parents guard the nest' contradicts the source.

    Seriously Fish: Channa pleurophthalma
  • Storycorrected

    Legacy 'a bold black eyespot on the flank': adults have several orange-ringed ocelli, not one black spot.

    FishBase: Channa pleurophthalma 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. The rule's spelling 'pleurophthalmus' refers to this species.

    eCFR 50 CFR 16.13 (US injurious wildlife: fish)