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Madagascar giant day gecko (Phelsuma madagascariensis)

Madagascar giant day gecko (Phelsuma madagascariensis), typical appearance of the species

Geckos · Difficulty: Intermediate

Key facts and care guidance for Madagascar giant day gecko (Phelsuma madagascariensis) (origin: Northern and north-eastern Madagascar). Adult size around ~20–25 cm total length. Life expectancy up to ~15–20 years (the nominate form can reach a great age). The values below are carefully researched guidance.

Short answers

Madagascar giant day gecko: How big does the enclosure need to be?

A tall enclosure from ~60×45×80 cm for one animal; a pair ~80×50×100 cm.

Madagascar giant day gecko: What temperature does it need?

Daytime 25–30 °C, basking spot 32–35 °C (locally up to ~40 °C), at night ~20 °C.

Madagascar giant day gecko: Does it need UVB lighting?

UVB: UVB needed (Ferguson zone 2–3, UV index 3–4; 5–10 % UVB); diurnal.

Madagascar giant day gecko: How long do they live?

Life expectancy: up to ~15–20 years (the nominate form can reach a great age).

Madagascar giant day gecko: Is it suitable for beginners?

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

Climate

Daytime temperature
25–30 °C
Night temperature
~20 °C
Basking spot
32–35 °C (locally up to ~40 °C)
Humidity
50–60 % by day, up to ~80 % at night
UVB
UVB needed (Ferguson zone 2–3, UV index 3–4; 5–10 % UVB); diurnal

Enclosure

Minimum size
a tall enclosure from ~60×45×80 cm for one animal; a pair ~80×50×100 cm
Substrate
Coco or humus soil, live large-leaved plants, smooth branches, hollow bamboo tubes, a little bark

Feeding

Food
Insects plus fruit purée or nectar; calcium
Feeding interval
adults 3–4×/week plus fruit purée, juveniles daily

Key facts

Adult size
~20–25 cm total length
Life expectancy
up to ~15–20 years (the nominate form can reach a great age)
Origin
Northern and north-eastern Madagascar
Protection status
CITES Appendix II / EU Regulation Annex B (Phelsuma spp.); proof of origin plus registration required
Brumation
No real winter rest; a slight seasonal drop is possible
Cohabitation
Keeping it singly is the least stressful solution, especially outside breeding. In pairs (one male, one female) works in a large enclosure – drawback: some males become very aggressive towards the female during the breeding season, so keep the pair separated from about May to October and have a spare enclosure ready. Never keep two males together.

Notes

The nominate form of the former Phelsuma madagascariensis complex (grandis is a species of its own today). Bamboo tubes as a retreat matter. UVB and calcium are essential against MBD. Do not touch it (delicate skin).

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Related species

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What you need to start

To keep Madagascar giant day gecko (Phelsuma madagascariensis) you typically need: a suitable enclosure (a tall enclosure from ~60×45×80 cm for one animal; a pair ~80×50×100 cm), substrate (Coco or humus soil, live large-leaved plants, smooth branches, hollow bamboo tubes, a little bark), 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: http://www.ig-phelsuma.de/?page_id=367, https://en.wikipedia.org/wiki/Phelsuma_madagascariensis, https://reptifiles.com/gold-dust-day-gecko-care-sheet/, https://reptile-database.reptarium.cz/species?genus=Phelsuma&species=madagascariensis, https://taggecko.ch/die-arten/steckbrief-der-arten/

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).