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Mimic Poison Dart Frog

Ranitomeya imitator · also called Thumbnail dart frog

AdvancedFamily Dendrobatidae

A tiny "thumbnail" dart frog famous for its devoted parenting — for the experienced viv keeper.

✅ We have a full, fact-checked care sheet for the Mimic Poison Dart Frog.

Open the Mimic Poison Dart Frog care sheet →

📋 At a glance

Tank
Planted vertical 18×18×18 in (1–3), ~5 gal each
Temp
72–80°F, low-mid 70s · over ~80°F is deadly
Humidity
80–100% · never sustained below 50%
Food
Melanogaster fruit flies (small) + springtails, dusted
Lifespan
8–15 years

✅ Captive-bred and non-toxic — and one of the few frogs whose pairs raise their young together.

🛒 Before you buy

  • A mature, densely-planted vertical viv with bromeliads + film canisters
  • A springtail culture + a small (melanogaster) fly culture running first
  • A mister/hygrometer holding 80%+ humidity
  • Calcium/vitamin supplement — and prior dart-frog experience

A healthy one: Tiny (~1 in) but plump · active and climbing · clear eyes · CAPTIVE-BRED.

🚨 See a vet / act now if…

  • Lethargy or hiding all day
  • Weight loss / thin legs, or not eating
  • Constant toe-tapping, or dark, clamped skin
  • Wobbling or seizures (often a calcium/vitamin issue)

⛔ Never

  • Wild-caught frogs
  • A brand-new, unestablished viv
  • Heat above ~80°F

Common mimic poison dart frog questions

How hard are Mimic Poison Dart Frogs to keep — are they good for beginners?

Advanced. A tiny 'thumbnail' dart — needs a mature, densely-planted vertical vivarium.

What do Mimic Poison Dart Frogs eat?

Melanogaster fruit flies (small) + springtails, dusted

What size tank do Mimic Poison Dart Frogs need?

Planted vertical 18×18×18 in (1–3), ~5 gal each

What temperature do Mimic Poison Dart Frogs need?

72–80°F, low-mid 70s · over ~80°F is deadly

What humidity do Mimic Poison Dart Frogs need?

80–100% · never sustained below 50%

How long do Mimic Poison Dart Frogs live?

8–15 years

What are the signs Mimic Poison Dart Frogs are sick?

See an exotics vet if you notice: Lethargy or hiding all day; Weight loss / thin legs, or not eating; Constant toe-tapping, or dark, clamped skin; Wobbling or seizures (often a calcium/vitamin issue).

Free tools for the mimic poison dart frog

Calm, honest help — each one knows when to say "see a vet."

📚 More dart frogs guides

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