Description
Other Names (How it Got Its Names)
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Common names: Crowned Tree Frog, Crowned Spiny-Headed Tree Frog.
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Named for the distinctive bony cranial “crown” and spiny ridges on its head.
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Native to Central America (Mexico, Guatemala, Honduras, Nicaragua, Costa Rica).
Characteristics
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Medium-to-large, robust arboreal frog.
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Notable for its helmet-like head, which it uses to block entrances to tree holes or bromeliads (a behavior called phragmosis).
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Nocturnal, secretive, and more terrestrial than most “tree frogs,” despite its name.
Recommended Vivarium Size
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Minimum: 18” x 18” x 24” for a pair.
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Larger setups (24” x 18” x 24” or bigger) preferred.
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Provide hollow logs, cork tubes, bromeliads, and tight hiding spaces to mimic natural shelters.
Temperature
Humidity
Size of Frog
Life Span
Feeding
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Diet: crickets, roaches, moths, and other appropriately sized insects.
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Feed 3–4 times per week.
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Dust prey with calcium and vitamins regularly.
Color/Pattern
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Grayish, tan, or olive base color with dark mottling.
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Large, flat triangular head with raised ridges (“crown”).
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Cryptic pattern helps them blend with bark, rocks, and leaf litter.
Social Behavior
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Generally kept as pairs or small groups with enough hiding spots.
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Males may call and display mild territorial behaviors during breeding.
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Relatively sedentary compared to more active tree frogs.
How to Determine Sex
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Males: smaller, slimmer, and develop nuptial pads; produce short, sharp calls.
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Females: larger, bulkier, especially when gravid.
How to Breed
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Reproduction is tied to rainy-season conditions.
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Males call from tree holes, bromeliads, or rock crevices to attract females.
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Eggs are deposited in water-filled cavities, and tadpoles develop aquatically.
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Rain chamber setups and bromeliads are often necessary to simulate natural breeding in captivity.
🌟 The Crowned Tree Frog (Triprion spinosus) is unique for its helmet-headed camouflage and phragmotic behavior — making it a fascinating, unusual display species.
