Red-Eyed Tree Frog

🔤 Taxonomy

Agalychnis callidryas is the currently accepted scientific name. The species was formerly placed in the large family Hylidae, but molecular studies have moved it to Phyllomedusidae, a separate family of waxy monkey frogs and their relatives. It is one of the most recognized amphibians in the world.

English common names used in the hobby:

• Red-eyed tree frog
• Red-eyed leaf frog

German common names used in the hobby:

• Rotaugen-Laubfrosch

📌 Description

Agalychnis callidryas is a slender arboreal frog instantly recognizable by its vivid green body, bright red eyes with vertical pupils, blue and cream banded flanks, and orange or red hands and feet. The coloration is most intense at night when the frog is active.

Females are noticeably larger than males. Adult females typically reach 6–7 cm, while adult males usually remain around 4–5 cm. Both sexes have large adhesive toe pads well suited to climbing smooth leaves and glass.

In captivity, this species can live 5–10 years with stable care. It is a display animal rather than a handling pet. Its skin is permeable and sensitive, and frequent handling causes stress and disrupts the protective skin secretions.

This frog is popular but not always a beginner species. It needs specific temperature cycles, high humidity, reliable live insect supply, and a tall planted enclosure. Keepers who can provide these consistently will find it straightforward to maintain.

🌍 Distribution

Agalychnis callidryas is native to lowland and premontane Central America from southern Mexico through Panama, with populations extending into northwestern Colombia. In the wild it is associated with humid rainforest near still or slow water, with adults resting in vegetation and breeding during wet periods.

For captive care, the useful lesson from this distribution is:

• stable humidity with fresh airflow rather than stagnant wetness
• leaf litter, roots, plants, or other natural cover at the level the species actually uses
• clean water sources or deposition sites appropriate to the species
• moderate temperatures with night drops where they occur naturally
• a planted enclosure that creates several small microclimates

🌡 Climate across the native range

Monthly climate normals from reviewed GBIF occurrence locations:

Weather data by Open-Meteo.com · CC BY 4.0 · Monthly normals calculated by Herpeton Academy from daily archive values.

Location references use GBIF.org occurrence data where available; original occurrence records retain their source dataset licenses.

⚖️ Legal status

As checked against current official sources in April 2026, Agalychnis callidryas is listed in CITES Appendix II. In EU wildlife-trade rules, Appendix II species are normally treated under Annex B unless a stricter or more specific measure applies.

The species is not relevant to the Bern Convention because it is not native to Europe. Local and national rules on import, sale, transport, animal welfare, and proof of captive origin may still apply. Well-established captive-bred populations exist in Europe and North America. Buyers should always request documentation of origin from a reputable breeder.

🤌 Husbandry

Red-eyed tree frogs are arboreal and nocturnal. Housing them well means providing height, climbing structure, humidity, and a reliable temperature drop at night.

Small groups can be kept together when all individuals are similar in size and the enclosure is large enough. A group of three to five frogs is manageable in a well-planted 60 × 45 × 90 cm enclosure or larger. Mixing animals of very different sizes increases the risk of attempted predation, and males kept without females may show constant stress from calling without response.

Good husbandry depends on:

• A tall enclosure with climbing branches, live plants, and cork
• High humidity with ventilation to prevent stagnation
• A pronounced temperature drop at night
• Heavy misting at dusk to trigger normal foraging and drinking behavior
• Clean water for skin contact and hydration

These frogs do not tolerate dry or stagnant conditions. They drink mainly by absorbing water through the skin while resting on wet surfaces, and they supplement this by lapping droplets from leaves after misting.

💡 Lighting

Agalychnis callidryas is nocturnal and does not bask. Strong overhead heat and intense light during the day cause the frog to remain compressed and motionless against a leaf surface as a stress response, not a sign of contentment.

A 10–12 hour photoperiod is appropriate, mimicking tropical day length year-round or with a slight seasonal variation of an hour or so. Bright but indirect daytime lighting that supports live plants is acceptable.

Low-level UVB is beneficial even for nocturnal amphibians. If UVB is provided, shaded retreats and dense plant cover must allow the frogs to avoid the lamp entirely when they choose. Tube-style UVB lamps at low indices are preferable to high-output bulbs.

Night lighting is unnecessary. Slight infrared warmth or a room-temperature drop is more useful than colored night bulbs.

For UV planning, treat this species as Ferguson Zone 1. Aim for about UVI 0.5-1.0 in the upper exposed area, while leaving retreats and a gradient down to shaded areas near zero UVI. This usually points to a low-output UVB tube such as a ShadeDweller-style or 2-7% T5, chosen for the enclosure height; measure with a Solarmeter 6.5 when possible, because reflector, mesh, distance, and lamp age change the real exposure.

🌡 Heating and temperature

Temperature management is critical for this species. A meaningful temperature drop at night is not optional — it is central to triggering normal behavior, appetite, and long-term health.

Suitable approximate temperatures:

• Daytime ambient: 24–28°C
• Night: 18–22°C
• Basking spot: not required

In many temperate homes, the daytime range is maintained passively, and the natural overnight room temperature drop is sufficient for the night range. In warm climates or heated rooms that stay above 24°C at night, active cooling or careful room management is necessary.

Chronic warmth without a night drop suppresses appetite, disrupts natural behavior, and leads to decline over time. Under-tank heating and tight thermostat setups are rarely appropriate for this species; controlling ambient air temperature is usually more effective.

💧 Humidity and water

Agalychnis callidryas requires high ambient humidity throughout the enclosure. A general range of 70–100% is appropriate, with conditions at the wetter end available at night when the frogs are active.

Key principles:

• Heavy misting at dusk to simulate the nighttime moisture increase of tropical forest
• Lighter misting in the morning if needed to maintain substrate moisture
• Good top ventilation to prevent stale, permanently saturated air
• A shallow water dish at the bottom large enough for a frog to sit in, changed daily

The substrate should retain moisture without becoming compacted or anoxic. The enclosure should feel humid but smell fresh. Overly wet, poorly ventilated setups promote bacterial growth and red-leg disease.

Because these frogs drink through the skin and absorb moisture from wet surfaces, the frequency and quality of misting directly affects hydration. Dechlorinated or reverse-osmosis water is preferable for misting and the water dish.

🌿 Enclosure and decoration

A tall, well-planted enclosure is the foundation of good care for this species. Floor space matters far less than vertical height and climbing structure.

A suitable enclosure for a small group should offer at minimum:

• 60 × 45 cm floor area and 75–90 cm or more of height
• Multiple sturdy horizontal branches at different heights
• Dense live or artificial foliage for daytime shelter
• Cork bark panels or tubes mounted vertically for climbing surfaces
• A shallow water area at the base

Live plants such as Philodendron, Epipremnum, Ficus pumila, bromeliads, and broad-leaved tropical species provide cover, help maintain humidity, and give the frogs realistic perching surfaces. Bioactive setups with a drainage layer, tropical substrate, and springtails and isopods for cleanup are well suited to this species.

Avoid sharp or rough decorations. The toe pads and skin are delicate, and enclosures with abrasive surfaces increase injury risk.

🪱 Feeding

Agalychnis callidryas is an insectivore. Feeding should happen at dusk or shortly after the lights go off, when the frogs become active and begin searching for prey.

Suitable staple prey items:

• Crickets (appropriately sized, no wider than the frog’s head)
• Small roaches
• Waxworms as occasional variety
• Small moths where available

Adults can be fed every 2–3 days. Juveniles and subadults benefit from daily or every-other-day feeding while growing. Prey that is too large causes stress and may lead to regurgitation.

Wild-caught insects should not be used because of pesticide and parasite risks. Prey should be gut-loaded before feeding to improve nutritional value. Calcium supplementation by dusting is important at most feedings. A broader multivitamin supplement can be offered once weekly or less often, according to product guidance.

These frogs strike quickly and accurately in low light. Prey left uneaten overnight should be removed before it disturbs resting frogs during the day.

🩺 Common problems

The most common problems in captive red-eyed tree frogs are linked to inadequate temperature cycling, poor humidity, dehydration, and low-quality or infrequent feeding. Warning signs include:

• Weight loss or visible thinning around the hips and spine
• Dull skin or incomplete shedding
• Lethargy extending into the normal active period at night
• Reddened or inflamed skin on the belly or legs (red-leg syndrome)
• Cloudy or swollen eyes
• Obvious bloating or asymmetric swelling
• Prolonged refusal to eat

Red-leg syndrome is a common bacterial infection linked to poor hygiene and inadequate water quality. If skin redness appears, the first checks should be water quality, enclosure cleanliness, and whether the frogs have consistent access to clean wet surfaces.

Chytrid fungus (Batrachochytrium dendrobatidis) is a serious pathogen affecting amphibians globally. New animals should be quarantined for at least 6 weeks before introduction to an established group, and any animals showing skin abnormalities or lethargy should be examined by a veterinarian experienced with amphibians.

Shedding problems are usually a sign of low humidity or dehydration. A healthy frog sheds regularly and typically eats the shed.

📌 Conclusion

Agalychnis callidryas is one of the most striking amphibians available in the hobby and can thrive in captivity when housing and routine are correctly matched to its needs. The key requirements — a tall planted enclosure, high humidity with good airflow, and a genuine temperature drop at night — are not difficult to provide but must be taken seriously.

It is an excellent display species for keepers who enjoy building naturalistic setups, can supply live insects reliably, and are prepared to adjust their room conditions to support the nighttime temperature cycle. With stable care, red-eyed tree frogs are hardy, long-lived, and genuinely fascinating to observe.

📚 Sources and further reading

• CITES Appendices and Species+ trade database, checked April 2026
• EU wildlife trade regulations and annex references, checked April 2026
• GBIF species backbone and occurrence data for taxonomy and distribution context
• IUCN Red List and specialist husbandry references where applicable