Lemur Tree Frog Care Guide
Agalychnis Lemur
Last updated: September 21, 2026
The Lemur Leaf Frog (Agalychnis lemur) is a small nocturnal tree frog from mid-elevation rainforest in Costa Rica, Panama, and northwestern Colombia. Yellow-green with silver-rimmed eyes by day, it darkens to a reddish-brown at night when active. Populations have collapsed 80-95% over two decades from chytridiomycosis and habitat loss; the species is IUCN Critically Endangered and listed on CITES Appendix II. Any hobby animals should come from established captive-breeding programs that support conservation. A cooler-preferring, humidity-sensitive species best suited to intermediate and advanced keepers.
Housing Requirements
- Terrarium Size: 18x18x24 Exo Terra or similar minimum for a pair; taller is better — this is a canopy species that lives high in the enclosure
- Tank Mates: Keep as same-species pairs or small groups; do not mix with other species
- Temperature: 68-75°F (20-24°C) during the day, 60-68°F (16-20°C) at night — a mid-elevation species that runs cooler than most tropical tree frogs, and the night drop is important
- Humidity: 70-80% ambient, spiking higher during misting cycles
- Lighting: Standard vivarium LED on a 12-hour day/night cycle; UVB is not required — dust prey with a quality calcium plus D3 supplement instead
Substrate & Environment
- ABG mix or similar well-draining substrate with a leaf-litter layer
- Densely planted — broad-leaved plants such as spathiphyllum, pothos, and philodendron give daytime perches; tall branches and vines for canopy access
- Several sturdy horizontal leaves above the substrate for the frogs to sleep on during the day
- A shallow water feature or reservoir with dechlorinated or RO water
- Keep the enclosure in a quiet, cool room — heat stress is a routine cause of loss for this species
Diet & Feeding
- Small crickets (1/4" or pinhead) as the staple; adjust prey size to mouth width
- Hydei fruit flies, small moths, and other soft-bodied flying insects for variety — flying prey is taken well
- Aphids as a small enrichment item
- Springtails and melanogaster fruit flies for froglets
- Dust prey with a quality calcium plus D3 supplement at most feedings; rotate in a multivitamin weekly
- Feed adults 2-3 times per week; more often for growing juveniles
Breeding
- Sexual maturity around 12-18 months
- Trigger breeding with a cool, drier winter rest (humidity dropped to 50-75%) followed by heavy misting or a rain chamber over dense foliage above water
- Clutches of roughly 10-20 pale greenish-blue eggs laid on the underside of leaves above the water; tadpoles hatch and drop into the water within about a week
- Rear tadpoles individually or in small groups in clean, aged water; feed a plant-based tadpole diet
- Considered a difficult species to reliably breed — captive success is limited and every produced clutch matters to the ex-situ population
Special Notes
- Diurnal color-changer: yellow-green with silver-rimmed eyes and dark-spotted flanks by day; body darkens to reddish-brown and the pupils narrow to slits when active at night
- Mid-elevation species — the night temperature drop is not optional, and sustained daytime warmth into the low 80s°F is dangerous
- Critically Endangered and CITES Appendix II — buy only from breeders with clear captive-bred provenance, and expect paperwork
- Handle only when absolutely necessary for medical care or moving
- Quarantine all new animals for 30+ days
See live availability + full details at Lemur Tree Frog on Feeling Froggy.