Reptoria

Blue-legged mantella (Mantella expectata)

Blue-legged mantella (Mantella expectata), typical appearance of the species

Amphibians · Difficulty: Intermediate

Key facts and care guidance for Blue-legged mantella (Mantella expectata) (origin: Southern Madagascar, the Isalo massif: sun-exposed, intermittently flowing rocky streams and canyons). Adult size around males 23–27 mm, females 27–30 mm. Life expectancy 5–10 years. The values below are carefully researched guidance.

Short answers

Blue-legged mantella: How big does the enclosure need to be?

50×40×50 cm for a group, planted.

Blue-legged mantella: What temperature does it need?

Daytime 19–25 °C in summer, 3–4 °C cooler at night, basking spot No basking spot — direct heat is harmful, at night 17–20 °C.

Blue-legged mantella: Does it need UVB lighting?

UVB: Weak UVB recommended (UVB 2.0).

Blue-legged mantella: How long do they live?

Life expectancy: 5–10 years.

Blue-legged mantella: Is it suitable for beginners?

Rather not – it is considered an intermediate species (difficulty: Intermediate).

Climate

Daytime temperature
19–25 °C in summer, 3–4 °C cooler at night
Night temperature
17–20 °C
Basking spot
No basking spot — direct heat is harmful
Humidity
60–80 %
UVB
Weak UVB recommended (UVB 2.0)

Enclosure

Minimum size
50×40×50 cm for a group, planted
Substrate
Only about a third planted, moist forest-floor area with drainage, moss and leaf litter; the rest set up like a rocky streambed of stone slabs and gravel, with a slope so that moist and noticeably drier zones sit side by side. Plus a shallow water area.

Feeding

Food
Crickets, house crickets, fruit flies and firebrats, dusted regularly with calcium and vitamins
Feeding interval
adults 3–4×/week

Key facts

Adult size
males 23–27 mm, females 27–30 mm
Life expectancy
5–10 years
Origin
Southern Madagascar, the Isalo massif: sun-exposed, intermittently flowing rocky streams and canyons
Protection status
CITES II — proof of origin required
Brumation
At least 10 weeks of dry dormancy below 20 °C (winter values 15–18 °C), less than 12 hours of lighting and heavily reduced misting; water about every two weeks in winter
Cohabitation
Group housing possible. Raise juveniles separately from adults. Not because they would be eaten — these animals are far too small for that — but because the larger ones get to the food first and the smaller ones fall behind. Provide enough hiding places so that every animal can retreat, and feed separately if there is a size difference.

Notes

From a drier region than the other Mantella species — mist markedly more sparingly and keep to a long dry season.

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Related species

All species in the care wiki →

What you need to start

To keep Blue-legged mantella (Mantella expectata) you typically need: a suitable enclosure (50×40×50 cm for a group, planted), substrate (Only about a third planted, moist forest-floor area with drainage, moss and leaf litter; the rest set up like a rocky streambed of stone slabs and gravel, with a slope so that moist and noticeably drier zones sit side by side. Plus a shallow water area.), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

The complete, interactive care database is in the Reptoria app.

Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: Wikipedia EN, erwineugster.ch, eu_annex.txt (lokal, VO (EU) 2026/1383), rana-terraria.com, EUR-Lex VO (EU) 2026/1383

All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).