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Pancake Frog

Otophryne robusta

A specialized microhylid frog (5.2 cm) native to South America (Southern Venezuela, Guyana, northern Brazil). Characterized by its incredibly flattened body, pointed snout, and upward-directed eyes and fossorial, leaf-litter dwelling habits.

Family
Microhylidae
Origin
Sud America (Venezuela meridionale, Guyana, Brasile settentrionale)
Origin
Amazon, Orinoco, and Guianas
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

20 °C - 26 °C

pH Value

n/a

Water type

Terrestrial

Humidity

80 % - 95 %

UVB

Low

Species description

Geographical Origin and Habitat: Native to South America (Southern Venezuela, Guyana, northern Brazil). It primarily occurs in the leaf litter of tropical rainforests near slow-flowing forest streams. It lives mostly concealed within leaf litter or burrowed inside moist soils.

Taxonomy and Genetics: Belongs to the Microhylidae family, genus Otophryne. This group consists of narrow-mouthed frogs highly adapted to specific fossorial or semi-arboreal microhabitats.

Behavior and Habits: Primarily nocturnal and secretive. It spends the daytime hours buried under the substrate or hidden beneath leaf litter, emerging to forage and breed during heavy seasonal rains.

Morphology: Features a plump, rounded body reaching about 5.2 cm. Skin texture ranges from smooth to warty with cryptic colors. Males are smaller than females and exhibit distinct vocal sacs during the breeding season.

Care, breeding and tankmates

Terrarium Setup: Provide a horizontal terrarium with a deep (10-15 cm) layer of loose, damp substrate such as coconut fiber and sterile peat moss. Add cork bark hides, dry leaves, and flat shelters to create shaded spots.

Lighting and Heating: Maintain daytime temperatures around 24.0°C and night temperatures at 20.0°C. Provide a 12-hour light cycle; a low-intensity UVB source is recommended to support general health.

Humidity and Hydration: Maintain relative humidity between 80.0% and 95.0%. Mist regularly with dechlorinated water and supply a very shallow water dish to prevent drowning risks.

Feeding and Supplementation: Strictly insectivorous. Offer gutloaded crickets, roaches, fruit flies, and small worms. Dust prey with high-quality calcium and vitamin D3 twice a week to support skeletal structure.

Compatibility: Best kept in a species-specific setup. Small groups of similar size can cohabitate, avoiding competition or accidental cannibalism.

Health and Common Diseases: Highly susceptible to bacterial skin infections (red leg disease) if ventilation is poor or the substrate is soiled. Regularly check skin condition and hydration levels.

Amphibian profile

Diet
Insectivore
Humidity
80 % - 95 %
Day temperature
24 °C
Night temperature
20 °C
UVB
Low

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 06/13/2026