Green and Black Dart Frog

Overview

Green and black dart frogs are black with green or light-blue bands or spots, in many color variants. Adults are about 4 cm long ⁹. They are diurnal and rarely still, always hunting or tending young ⁹. LafeberVet lists a lifespan of 7 to 15 years, and Animal Diversity Web reports an average of 8.3 years in captivity ²⁹.

Natural history

Animal Diversity Web places the species in Central and South America and notes an introduced population in Hawaii ⁹. Adults live on the rainforest floor near small streams and pools ⁹. Wild frogs eat small invertebrates, especially alkaloid-rich ants, and store those alkaloids in their skin ⁹.

Enclosure

• Size. Recommendations vary. Tree of Life suggests a 10-gallon vertical terrarium as the minimum for one frog or a pair, and 18 × 18 × 24 inches or more for groups ¹. LafeberVet suggests one to four frogs in a heavily planted 20-gallon tank ². Chicago Exotics says no smaller than 24 × 12 × 16 inches, and larger is better ³.
• Planted and secure. Use live plants such as pothos, bromeliads and philodendrons, plus cork bark, leaf litter and climbing ledges. Fit a lid with no gaps, because dart frogs are excellent climbers ¹³.
• Ventilation. A screened top and good drainage keep the vivarium humid without going stale or soggy ¹³.
• Small groups can work. Chicago Exotics lists D. auratus among the dart frogs that can live in same-species groups. Some territorial squabbling happens, so never crowd them ³.

Temperature & lighting

Most homes are warm enough without extra heat ¹³. Tree of Life warns that temperatures over 82°F can be fatal ¹. LafeberVet advises against radiant heat sources, which dry the enclosure ². Run a 12-hour light cycle ¹. Tree of Life calls UVB optional but possibly helpful in small amounts, while Chicago Exotics considers low-level UVB important. Either way, mount it over screen, because glass and plastic block UVB ¹³.

Humidity

Keep humidity high: Tree of Life says 70–100%, LafeberVet 80–100% and Chicago Exotics 75% or above ¹²³. Mist at least daily, or use an automatic mister or fogger ¹³. Dart frogs drink through their skin, so keep shallow water dishes or features filled with clean, chlorine- and chloramine-free water and change it often ¹³.

Substrate

A bioactive layered build works best ¹³:

• 1–2 inches of clay balls or gravel for drainage
• a fabric barrier
• 4–5 inches of fertilizer- and pesticide-free planting soil
• moss and leaf litter on top

Springtails and isopods help break down waste ¹³. Chicago Exotics suggests gently turning the soil every 2–3 months and renewing it fully every 6 months ³.

Diet & supplementation

• Tiny prey. Dart frogs eat very small insects: wingless fruit flies, springtails, isopods, rice flour beetles and pinhead crickets ³⁴.
• Supplements. Dust insects with a supplement containing calcium, vitamin D3 and vitamin A ³. Tree of Life says to use calcium with D3 every other feeding ¹. LafeberVet suggests twice weekly for juveniles and once weekly for adults ². Insect-only diets without supplements cause metabolic bone disease ⁵.
• Schedule. Chicago Exotics feeds young frogs daily and adults every other day, or daily for females producing eggs ³.
• Clean up. Offer what the frogs eat within about an hour, and remove leftovers ¹.

Handling & temperament

These are "look but don't touch" frogs ². They're easy to crush, and their skin absorbs whatever is on yours ¹³. To move one, coax it into a clean lidded tub. If you truly must touch it, wear moistened powder-free or nitrile gloves ¹²³.

Are they still poisonous? Wild dart frogs build their skin toxins from the ants, termites and other invertebrates they eat ⁴⁹. Captive-raised frogs on a captive diet lose most or all of that toxicity ¹³⁴. LafeberVet still advises treating any dart frog as toxic until shown otherwise, because not every dart frog in the trade is captive bred ². Wash your hands after tending the vivarium, since amphibians can carry Salmonella ⁷.

Health

Common issues

• Dehydration if humidity drops ¹.
• Nutritional deficiencies, including metabolic bone disease (soft jaw, fractures, curved spine), from poor supplementation ¹⁵.
• Bacterial and fungal skin infections, linked to dirty substrate and poor ventilation ¹⁶.
• Stress from too little cover or too much disturbance ¹.

When to see a vet

Chicago Exotics recommends a vet check and fecal parasite exam soon after you bring new frogs home ³. After that, see an amphibian vet for weight loss, poor appetite, skin color changes, red spots, weakness or loss of balance ⁶.

Breeding overview

Males establish territories and court females with trilling calls ⁹. The female lays a small clutch of up to six eggs, and the male checks on them while they develop. After hatching, the tadpoles climb onto his back and he carries them to water ⁹. Dart frogs are hard to sex until about a year old. Females are usually larger, and males call ³.

Legal & ethics

Dendrobates auratus is listed in CITES Appendix II, so international trade requires permits ⁸. Chicago Exotics recommends captive-raised frogs, which do best in vivariums ³.

Sources

1. Poison Dart Frog Care · Tree of Life Exotic Pet Medical Center
2. Basic Information Sheet: Poison Dart Frog · LafeberVet
3. Dart Frog Care · Chicago Exotics Animal Hospital
4. Poison Frog · San Diego Zoo Wildlife Alliance
5. Nutritional Diseases of Amphibians · Merck Veterinary Manual
6. Common Infectious Diseases of Amphibians · Merck Veterinary Manual
7. Salmonella, Feeder Rodents, and Pet Reptiles and Amphibians · U.S. Food and Drug Administration
8. CITES listing: Dendrobates auratus · Species+ (UNEP-WCMC and CITES Secretariat)
9. Dendrobates auratus (Green and Black Dart-poison Frog) · Animal Diversity Web, University of Michigan

Last reviewed 2026-10-24 by Novel Fauna. This guide is general husbandry information, not veterinary advice. When an animal is sick, see a veterinarian experienced with exotic animals.

Revision history

1. 2026-10-24 Library: 50 cited care guides, /library/[slug] route, coming-soon cards, SLUGS.txt synced to species.guide_slug 228ce54

Evidence grades: Novel Fauna editorial: source classification, not yet expert-reviewed, 2026-10-25. What the grades mean.

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