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Japanese Tree Frog© 池田正樹 (talk) masaki ikeda / CC BY-SA 3.0

Japanese Tree Frog

The Japanese tree frog is a small, familiar amphibian often spotted around rice paddies, ponds, and park water features across Japan. Its glossy bright green skin and round, gentle face give it an endearing look that has made it a favorite among frog keepers. Skin tone can shift slightly with surrounding color and humidity, so watching one closely reveals subtle changes over time. Its temperament is calm; loud calling is mostly limited to males during the breeding season, and their chorus starting up as rain begins is a sound long associated with life in Japan. It moves nimbly but isn't especially flighty, often settling into a relaxed routine in captivity. Adults stay compact at about 2 to 4 cm, and the species is considered beginner-friendly, making it an approachable choice for anyone new to keeping amphibians.

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Japanese Tree Frog key facts

Care level
Beginner-friendly
Lifespan
3-5 years
Size
2-4cm
Temperature
20〜26℃
Humidity
60〜80%
Diet
Small insects (fruit flies, small crickets)
Enclosure
Tall plastic case. Ensure ventilated lid
Temperature & Humidity
Keep the temperature at 20-26°C and humidity at 60-80%. Mist daily to maintain humidity while a ventilated lid prevents stuffiness.
Diet & Feeding
Live insects such as crickets are the staple. Since it is only 2-4cm long, choose prey that fits its mouth, such as fruit flies or small crickets.
Diet
Live food only. Will not eat artificial diet
Notes
Secretes mild toxin from skin — wash hands after handling
TraitsJapanese nativeFrogFamiliarCalling

About Japanese Tree Frog

An overview of the Japanese tree frog's traits, temperament, and care basics — a compact 2-4 cm species with a 3-5 year lifespan that's considered beginner-friendly.

7 things to know before welcoming a Japanese Tree Frog

  1. 1Enclosure Size Basics

    Being a small frog, it can be kept in a fairly compact enclosure. Choose a well-ventilated container with a secure lid, since these frogs are skilled climbers that can slip through small gaps.

  2. 2Humidity and Water Care

    Japanese tree frogs absorb moisture through their skin, so maintaining adequate humidity in the enclosure is essential. Keep the water dish clean and change it regularly, and mist the enclosure periodically to prevent it from drying out.

  3. 3Day and Night Activity

    During the day they tend to rest quietly, tucked among leaves or against the enclosure walls, becoming more active at night. Don't worry if you can't spot yours during the day — check its favorite hiding spots instead.

  4. 4Feeding Routine

    They prefer small live insects as food. Remove any uneaten prey promptly to keep the enclosure clean, which helps support their overall health.

  5. 5Temperature Management

    Extreme heat or cold can affect their condition. Keep the enclosure away from direct sunlight and air conditioner drafts, and check for temperature swings across the seasons.

  6. 6Be Ready for Calling

    Males can call loudly during the breeding season. If you live in an apartment, it's worth thinking ahead about where to place the enclosure and how the calling might be heard by neighbors.

  7. 7Handle With Care

    Their skin is thin and sensitive, so handling should be kept to a minimum, and hands should always be washed after any contact. Residue such as sweat or lotion on human hands can be harmful to the frog.

Frequently asked questions about Japanese Tree Frog

Q.Can beginners keep this frog?
A.Yes, the Japanese tree frog is generally considered a beginner-friendly species. As long as you can keep up with basic humidity management and feeding, it's an approachable choice even for first-time amphibian keepers.
Q.How long can I expect to keep one?
A.Their lifespan is typically around 3 to 5 years. Consistent, attentive care of their environment day to day is key to helping them live a long, healthy life.
Q.How big does it grow?
A.Even as adults, they stay small at around 2 to 4 cm. That compact size makes them easy to house without needing much space.
Q.How loud is its call?
A.Males can call fairly loudly during the breeding season. Depending on the time of day and where the enclosure is placed, this may be noticeable as household noise, so it's worth thinking about in advance.
Q.Can I keep it in the same room as other pets?
A.Since they prefer a calm environment, placing the enclosure somewhere with little noise or vibration helps them settle in comfortably. Avoid letting other pets have direct contact with the enclosure.

Useful tools for Japanese Tree Frog care

🦎Reptile Temperature CalculatorView basking, cool-side, night temps, humidity & UVB requirements by species🧬Morph Genetics CalculatorCalculate morph breeding outcomes for leopard geckos & ball pythons📅Breeding CalendarVisual monthly breeding season guide for each species🍽️Feeding GuideCheck feeding frequency, portion sizes & supplements by species and growth stage🗓️Seasonal Care CalendarMonthly care events and seasonal management tips at a glanceElectricity Cost SimulatorCalculate monthly and annual electricity costs for care equipment with presets🧬Breeding PlannerSelect parent varieties to view breeding schedules and offspring patterns🧮Care Cost SimulatorEstimate initial, monthly & annual costs by category, care level and quantity⚖️Species Comparison ToolCompare two species side by side: care difficulty, size, lifespan & temperature🎯Pet Match DiagnosticAnswer 7 questions to find your top 3 perfect pets📋Lifetime Cost SimulatorEstimate lifespan and lifetime costs by species for dogs, cats, reptiles and more🚚Transport Safety CheckerCheck transport safety score and precautions by category, season, method and distance🏠Multi-Pet Budget PlannerPlan budget for multiple pets with shared and individual cost breakdown💊Medication Dosage CalculatorCalculate proper medication dosage by body weight and medicine type for fish, reptiles, and small animals⏱️Quarantine & Acclimation TimerManage quarantine periods and acclimation steps with countdown timers. Includes recommended durations by species

Learn more about Japanese Tree Frog in the encyclopedia

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Care difficulty, lifespan, size and diet — all basics covered.

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