Red-Eyed Tree Frog
Agalychnis callidryas
A slender, nocturnal Central American leaf frog with leaf-green skin, red eyes, orange toe pads, and blue-and-yellow flanks. It needs a tall planted enclosure, high humidity with airflow, live insects, and almost no handling.
Overview
The red-eyed tree frog (Agalychnis callidryas) is a slender, nocturnal leaf frog native to humid forests from southern Mexico through Central America into northern Colombia. It is famous for leaf-green camouflage, startling red eyes, orange toe pads, and blue-and-yellow flanks. Captive-bred animals are widely available and listed on CITES Appendix II, but they still need a tall planted enclosure, warm temperatures with a night drop, humidity with real ventilation, live insects with calcium support, and almost no handling. Permeable skin makes soaps, lotions, and dirty water dangerous.
Native Regions
Southern Mexico, Belize, Guatemala, Honduras, Nicaragua, Costa Rica, Panama, Northern Colombia
Habitats
Humid tropical lowland rainforest, Premontane humid forest, Vegetation overhanging ponds, streams, and wetlands
Adult Length
Males about 2-2.5 inches (5-6.5 cm); females about 2.5-3 inches (6.5-7.7 cm), occasionally approaching 3.5 inches
Adult Weight
About 6-15 grams (0.2-0.5 ounces); body condition varies with sex and feeding
Lifespan
5–10 years
For Beginners
Possible only if the keeper is ready for live insects, daily misting with airflow, dechlorinated water, and a display-only frog. Intermediate is the better label because humidity, ventilation, and overheating are easy to get wrong, and the species is not handling-tolerant.
For Experienced Keepers
Experienced keepers can refine tall bioactive or paludarium setups, low-level UVB with dense shade, carefully monitored same-species groups, quarantine and disease testing, and seasonal rain-chamber breeding. A female can produce multiple clutches in a night, so breeding should be intentional.
Key Points
- › A nocturnal arboreal display frog, not a handling pet
- › Needs a tall, humid, ventilated setup with climbing foliage and clean dechlorinated water
- › Captive-bred and commonly available, but humidity, temperature, and skin care mistakes are costly
Appearance & Behavior
Adults are slender arboreal frogs about 2-3 inches (5-7.7 cm) long. Males typically reach about 59 mm (about 2.3 inches); females are larger, up to about 77 mm (about 3 inches), and some care sources report females approaching 3.5 inches. The dorsum is leaf-green to dark green, often with faint darker lines or small white dots. Flanks are blue, purple, or brownish with cream or yellow bars; hands and feet are mostly orange with large adhesive discs. Eyes are protuberant and red with vertical pupils. Newly metamorphosed froglets often have yellow eyes that turn red over about two weeks, and they may look brownish at night.
Normal Behavior
These frogs are nocturnal and crepuscular. By day they usually rest on the underside of a broad leaf with limbs tucked and red eyes covered, reducing water loss and blending into foliage. At night they climb and hunt insects. Disturbed frogs may flash red eyes, blue flanks, and orange feet before leaping. Males call with a repeated 'chack' or chuckle, especially after rain, and can also shake branches during male-male contests.
Social Behavior
Same-species groups can work when frogs are similar in size, the enclosure is tall and densely furnished with multiple perches and leaf hides, and each animal is seen eating. PetMD advises against housing adult males together because they are territorial; mixed pairs or groups need extra space and may breed. House alone if there is bullying, large size disparity, or insufficient space.
Warning Signs
Persistent lethargy, prolonged appetite loss, dry or damaged skin, weak grip, constant soaking, bloating, redness of the underside or limbs, abnormal shedding, open-mouth breathing, or sudden weight change warrant husbandry review and veterinary advice.
Key Points
- › A slender green leaf frog with red eyes, orange toe pads, and barred flanks
- › Nocturnal; rests camouflaged on leaves by day and hunts at night
- › Can be kept singly or in carefully monitored same-species groups
Enclosure & Environment
Enclosure Size
Minimum about 18 x 18 x 24 inches (45 x 45 x 60 cm) for one adult; use a larger tall enclosure for pairs or groups. The previous 15-inch-high catalogue size is too short for an arboreal frog. PetMD's 10-15 gallon floor-area guidance is not a substitute for vertical space.
Enclosure Type
Tall front-opening glass or similarly nonporous terrarium with a secure lid and screened ventilation. A paludarium can work if frogs can leave the water easily; this is not an aquarium species.
Substrate
Use moisture-retentive options such as coconut fiber, cypress mulch, or a bioactive soil mix over drainage, often topped with sphagnum or leaf litter. Keep drainage water inaccessible. Avoid fine gravel or small bark that can be swallowed, and avoid abrasive reptile carpet. Paper towel is acceptable for quarantine.
Heating
Maintain daytime ambient temperatures around 75-82°F with an optional mild elevated warm perch of about 82-85°F. Allow nights near 68-72°F. Use thermostatically controlled low-wattage heat and never use hot rocks. These frogs overheat easily; avoid sustained temperatures at or above about 85-86°F.
Humidity
Keep average humidity about 60-80%, targeting roughly 70-75% most of the day, with brief rises after evening misting and enough airflow that surfaces can partly dry. Constant saturation with poor ventilation increases bacterial skin risk. Mist once or twice daily with dechlorinated water, more heavily at dusk.
Lighting
Provide a roughly 12-hour day and night cycle. Low-output UVB is recommended as part of the care plan even though the species is nocturnal; supply dense shaded retreats, mount UVB above mesh rather than through glass, and replace bulbs on schedule. Do not leave bright white lights on at night.
Décor & Enrichment
Offer sturdy branches of varying diameters, cork flats or tubes, live or sturdy artificial plants with broad leaves, and elevated hides. Include a shallow, easily entered dish of dechlorinated water changed daily. Dense foliage is essential for daytime shelter.
Cleaning & Maintenance
Spot-clean feces and uneaten insects daily. Change the water dish daily. Deep-clean periodically with an amphibian-safe disinfectant or diluted bleach, then rinse thoroughly with dechlorinated water before returning the frog. Use separate tools from other amphibian enclosures.
Key Points
- › Use a tall, secure enclosure of at least 18 x 18 x 24 inches with climbing foliage
- › Pair humidity with ventilation and a mild warm gradient, not a sealed wet box
- › Provide clean dechlorinated water and shaded low-level UVB
Diet & Nutrition
An insectivorous frog that needs varied, gut-loaded live prey rather than a single staple insect. Feed in the evening when the frogs are active.
Food Types
Staples include gut-loaded crickets and roaches. Secondary options include small earthworms, silkworms, black soldier fly larvae, flies, and moths. Reserve high-fat waxworms and hard mealworms as occasional treats. Do not offer wild-caught insects.
Feeding Schedule
Feed juveniles daily. Feed adults about three to four times weekly or every two to three days, adjusting to body condition. Remove uneaten insects within a few hours so they cannot bite resting frogs.
Supplements
Dust juveniles more frequently with calcium and provide a weekly amphibian-safe multivitamin that includes vitamin A. For adults, dust calcium about two to three times weekly and multivitamin about weekly, matching D3 products to the UVB plan.
Hydration
Maintain a shallow dish of clean dechlorinated or otherwise conditioned water and mist with the same quality water. Frogs absorb moisture through the skin and from wet leaves; do not rely on untreated chlorinated tap water or distilled water alone.
Preparation
Offer prey no wider than the frog's head or the distance between the eyes. Gut-load insects for about 24 hours and dust immediately before feeding.
Common Mistakes
Oversized prey, cricket-only diets, skipping gut-loading or supplements, leaving insects in overnight, overfeeding adults, and using dirty or chlorinated water.
Key Points
- › Feed a varied rotation of gut-loaded insects in the evening
- › Juveniles daily; adults several times weekly
- › Calcium imbalance and obesity are common husbandry failures
Handling
This is an observation frog. Permeable skin, strong jumping, and stress from contact make routine handling inappropriate.
Techniques
Move the frog with a clean, ventilated cup whenever possible. If contact is necessary, wash and rinse hands thoroughly or wear powder-free gloves moistened with dechlorinated water, support the body briefly, and keep the session short.
Do's & Don'ts
Do not handle with dry, soapy, lotioned, or chemically contaminated hands. Avoid frequent handling, chasing, or squeezing. Skin peptides can irritate eyes, mouth, or open wounds; wash after any contact. Do not treat this species as venomous, but do not assume skin secretions are harmless to mucous membranes.
Taming
Acclimation comes from predictable care, not from handling practice. These frogs do not become handling pets.
Stress Signals
Stop if the frog struggles repeatedly, leaps wildly, becomes unusually pale or dark, remains flattened and motionless, or shows abnormal breathing.
Key Points
- › Not a handling pet; use a cup for necessary moves
- › Protect permeable skin from soaps, lotions, and dry hands
- › Skin secretions can irritate eyes and broken skin
Health & Wellness
Common Health Issues
Bacterial skin disease and red-leg syndrome
Description
Opportunistic bacterial disease is associated with dirty water, stagnant humidity, poor ventilation, and other stressors. Reddened skin is a warning sign, not a home diagnosis.
Symptoms
Redness of limbs or underside, sores, lethargy, appetite loss, weak grip, or abnormal posture.
Prevention
Change water daily, allow partial drying between mistings, keep temperatures in range, and quarantine new amphibians with separate tools.
Treatment
Isolate as advised and contact a qualified exotic or amphibian veterinarian promptly; do not apply over-the-counter skin treatments.
Metabolic bone disease and nutritional imbalance
Description
Inadequate calcium, vitamin D3, UVB access, or prey quality can impair skeletal development. Hypovitaminosis A is also a documented captive-amphibian risk when diets lack vitamin A.
Symptoms
Weakness, poor posture or grip, tremors, deformities, declining appetite, or abnormal limb use.
Prevention
Gut-load feeders, use measured calcium and multivitamin dusting, and provide low-level UVB with shaded retreats.
Treatment
Seek veterinary diagnosis; do not attempt high-dose vitamin, calcium, or UVB correction without professional direction.
Dehydration and humidity-related skin problems
Description
Humidity that is too low dries permeable skin, while constant saturation with poor airflow encourages infection. These frogs need humid air and clean water, not a sealed wet box.
Symptoms
Dry or sticky skin, lethargy, clinging to water dishes, abnormal shedding, or skin lesions.
Prevention
Keep average humidity about 60-80%, mist with dechlorinated water, allow partial drying, and always provide a clean soaking dish.
Treatment
Correct husbandry immediately and contact a qualified exotic or amphibian veterinarian if the frog does not improve or shows lesions.
Overheating and temperature-related illness
Description
This tropical species still overheats easily. Sources warn that high temperatures can be rapidly lethal, while sustained cool conditions suppress immunity.
Symptoms
Agitation, seeking the water dish, lethargy, gaping, collapsed posture, or sudden death after heat spikes.
Prevention
Use a thermostat, measure temperatures at frog level, provide shade, and avoid placing the enclosure in direct sun or next to heat sources.
Treatment
Move the frog to a cooler, humid, ventilated holding container and contact a qualified exotic or amphibian veterinarian immediately.
Infectious amphibian diseases including chytridiomycosis
Description
Amphibians can carry chytrid fungus (Batrachochytrium dendrobatidis), ranavirus, and other pathogens that threaten collections and wild populations. Educational awareness is not a diagnosis.
Symptoms
Lethargy, abnormal shedding, redness, appetite loss, bloating, incoordination, or sudden death, especially in newly acquired or recently metamorphosed frogs.
Prevention
Quarantine newcomers for at least 6-8 weeks, use separate tools, ask an amphibian-experienced veterinarian about fecal exams and Bd or ranavirus testing, and never release captive frogs or buy wild-caught animals.
Treatment
Contact a qualified exotic or amphibian veterinarian for testing and prescribed treatment; do not medicate the enclosure or raise heat blindly.
Preventative Care
Monitor appetite, weight or body condition, grip, temperature, humidity, and water cleanliness. Quarantine new amphibians, use separate tools, minimize handling, prefer captive-bred CITES-compliant animals, and schedule wellness review with an exotic veterinarian experienced with amphibians.
Emergency Signs — seek vet care immediately
Seek prompt amphibian-experienced veterinary care for open-mouth breathing, severe lethargy, inability to climb or right itself, marked bloating, bleeding, extensive redness or skin damage, eye or mouth irritation after secretion exposure, or prolonged refusal to eat.
Key Points
- › Stagnant humidity, dirty water, heat spikes, and calcium errors cause many problems
- › Quarantine and veterinary testing reduce infectious-disease risk
- › Illness signs need veterinary diagnosis, not home medication
Breeding
In the wild, breeding follows rainy-season rains from about late May to November. Captive breeding usually involves a cooler, slightly drier rest of about 5-6 weeks, then warmer temperatures, heavier misting or a rain chamber, and vegetation overhanging water.
Preparation
Breed only healthy, mature frogs with a plan for tadpoles, quarantine biosecurity, and rearing space. Confirm local legality; this species is listed on CITES Appendix II. Prefer captive-bred stock. A male surplus can increase calling, but crowding and male-male fighting are risks.
Breeding Process
Males call and may wrestle. After amplexus, the female typically enters water to fill her bladder, then deposits a gelatinous clutch of about 40 green eggs on a leaf overhanging water. She may repeat this several times in one night. Fertilization is external and usually highly successful.
Egg Care
Keep eggs humid and largely undisturbed; mechanical disturbance can trigger early hatching. Undisturbed clutches usually hatch in about 6-10 days, often around day 6-8. Tadpoles drop into water below. Infertile or fungus-covered eggs should be removed under veterinary or experienced-breeder guidance.
Hatchling Care
Tadpoles are mid-water filter feeders and need clean, dechlorinated water around mid-70s °F, gentle filtration, and appropriate larval diets until metamorphosis, commonly about 6-9 weeks. Froglets need tiny live prey, humid climbing-friendly housing, and excellent ventilation. Too wet causes infection; too dry causes desiccation.
Key Points
- › Rain-season leaf breeders that can produce multiple clutches in a night
- › Eggs usually hatch in about a week; tadpoles metamorphose in about 6-9 weeks
- › Do not breed without a complete larval-rearing plan