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Encyclopedia / Frogs & Newts / Oriental fire-bellied toad
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Variations

2 kinds · tap one for a closer look

Oriental fire-bellied toad

Bombina orientalis · Fire belly toad, Bombina

Active and social.

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5 cmAdult size ✓
UnknownTemperature ?
UnknownpH ?
UnknownSmallest tank ?
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This one is best kept on its own, or with its own kind.

✕Not recommended
  • Oriental fire-bellied toad should be kept without other species, and it needs a land area too.
✕Not recommended
  • Oriental fire-bellied toad should be kept without other species, and it needs a land area too.
✕Not recommended
  • Oriental fire-bellied toad should be kept without other species, and it needs a land area too.
Facts checked against sources on 16 Oct 2026. ✓ means a source backs it; ? means no reliable source yet. See sources

Care and water

Hardness ?Unknown
Group size ?3 or more
Temperament ✓Semi-aggressive
Swims at ?Top
Care level ?Easy
Diet Carnivore
Lifespan ✓20–30 years
Size in shops 2.5–4 cm
Growth Medium

Behavior

Active and social.

Good to know: Semi-aquatic: needs a paludarium with half land and half water.

Food

Live crickets, worms.

Tap a food to see what it is.

Male or female

Breeding males develop nuptial pads on the first and second fingers and call; females are generally larger.

Health

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

Breeding

Egg-layer (substrate spawner) · Moderate

Breeds May to mid-August in still or slow water. In captivity, breeding follows a cool winter period with simulated rain.

Pairing

Buy a group of 4-6. Males call.

Setup

A 80 L tank with land and water at 18-24 C.

What starts it

A cool winter then warm.

Eggs

A clutch holds 38-257 eggs laid in small batches of 3-45; eggs hatch after 3-10 days.

Raising the fry

Tadpoles eat fine food; froglets need small insects.

Common mistakes
  • Warm tank
  • Not enough land
  • Poor water
Full breeding guide, day-by-day plan and simulator →

Where it lives in the wild

Yangtze and southern ChinaJapanese rice fieldsLoading the map…
Native range (rough area)Centre of the rangePlaces on the World Map
RegionNorth-east Asia – Korea, north-east China & Russian Far East
Rivers and lakesKorean Peninsula streams, Shandong and Primorye wetlands
HabitatShallow ponds, streams and flooded fields near woodland
Native rangeAbout 900 km across
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The story of the oriental fire-bellied toad

A small toad with a green-to-grey, dark-spotted back and a bright warning-coloured belly. Its skin toxin is harmful in the eyes, mouth or cuts, so wash hands after handling.

Boulenger described the Oriental fire-bellied toad in 1890, originally in another genus. It has long been one of the most common amphibians in the pet trade because it is hardy, active by day and largely aquatic. It is also widely used in laboratory studies.

First described by George A. Boulenger in 1890.

  • When threatened it arches its back to flash its red belly, a display called the 'unken reflex'.
  • Its skin produces irritating secretions, so hands should be washed after handling.
  • Unlike true toads, it has smooth-ish skin and spends much of its time in water.

Sources

12 facts checked with sources

  • Scientific name

    Amphibian (semi-aquatic toad), not a fish. Note: blue-backed animals sold as a 'blue' form are not described in AmphibiaWeb; the dorsum is described as brown-grey to green.

    AmphibiaWeb: Bombina orientalis
  • Familycorrected

    New value.

    AmphibiaWeb: Bombina orientalis
  • Size

    Snout-vent length range 3.5-8 cm; legacy 5 cm is within it and typical. Upper figure 8 cm is the maximum.

    Animal Diversity Web (University of Michigan): Bombina orientalis
  • Group size

    No source gives a minimum keeping group.

    Animal Diversity Web (University of Michigan): Bombina orientalis
  • Lifespancorrected

    Maximum longevity: about 20 years in the wild, up to 30 in captivity. Legacy 10-15 is a conservative typical figure, but sources give longer maxima.

    AmphibiaWeb: Bombina orientalis · Animal Diversity Web (University of Michigan): Bombina orientalis
  • Temperamentcorrected

    ADW contradicts legacy 'peaceful/social' for captive animals. Also toxic skin: unsafe with fish or other amphibians that might eat them.

    Animal Diversity Web (University of Michigan): Bombina orientalis
  • Swimming level

    Semi-aquatic; no swimming-level statement.

    AmphibiaWeb: Bombina orientalis
  • Where it livescorrected

    New value. AmphibiaWeb lists northeastern China, Korea, southern Japan and the Russian Far East. IUCN Least Concern.

    AmphibiaWeb: Bombina orientalis
  • Male or femalecorrected

    Calling verified; 'thicker forearms' not found; nuptial pads and larger females added.

    AmphibiaWeb: Bombina orientalis · Animal Diversity Web (University of Michigan): Bombina orientalis
  • BreedingAmphibiaWeb: Bombina orientalis · Animal Diversity Web (University of Michigan): Bombina orientalis
  • Eggs and youngcorrected

    Legacy figures are close but slightly off.

    AmphibiaWeb: Bombina orientalis · Animal Diversity Web (University of Michigan): Bombina orientalis
  • Story

    Belly colour not quoted from source but is the basis of the common name.

    AmphibiaWeb: Bombina orientalis · Animal Diversity Web (University of Michigan): Bombina orientalis