Feeling Froggy

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

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