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AmphibianTerrestrialIntermediate
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Island Giant Treefrog

Cophyla occultans

A specialized microhylid frog (2.2 cm) native to Northwestern Madagascar (Nosy Be Island). Characterized by its miniature body size and a highly distinct loud metallic call and fossorial, leaf-litter dwelling habits.

Taxonomy
Class:Amphibia
Order:Anura
Family:Microhylidae
Subfamily:Cophylinae
Genus:Cophyla
Species:Cophyla occultans

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Environment

Terrestrial

Humidity

70 - 90 %

Day temperature

26 °C

Night temperature

22 °C

Ambient temperature

26 °C

Minimum enclosure

>= 45 L

UVB

Low

Species description

Geographical Origin and Habitat: Native to Northwestern Madagascar (Nosy Be Island). It primarily occurs in remnant rainforest patches on Nosy Be Island and adjacent mainland. It lives mostly concealed within leaf litter or burrowed inside moist soils.
Taxonomy and Genetics: Belongs to the Microhylidae family, genus Cophyla. 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 2.2 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 26.0°C and night temperatures at 22.0°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 70.0% and 90.0%. 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.

Geographic Origin and Distribution

Native to Northwestern Madagascar (Nosy Be Island). It primarily occurs in remnant rainforest patches on Nosy Be Island and adjacent mainland. It lives mostly concealed within leaf litter or burrowed inside moist soils.

Origin

Tropical oceans and reefsAfrica and Madagascar

Amphibian profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
No verified data available
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Toxicity
No verified data available
Life stage
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

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

Related species

Recommendations grouped by close relatives, companion choices, and similar care.

Last updated: 08/10/2026
Island Giant Treefrog (Cophyla occultans) Care Guide & Terrarium Setup | Atlarium