Reptoria

Formosan grass lizard (Takydromus formosanus)

Formosan grass lizard (Takydromus formosanus), typical appearance of the species

Lizards · Difficulty: Beginner with some knowledge

Key facts and care guidance for Formosan grass lizard (Takydromus formosanus) (origin: Taiwan). Adult size around 18–25 cm. Life expectancy 5–12 years. The values below are carefully researched guidance.

Short answers

Formosan grass lizard: How big does the enclosure need to be?

80×40×50 cm for a group.

Formosan grass lizard: What temperature does it need?

Daytime 24–29 °C, basking spot Basking spot 32–35 °C, at night 18–21 °C.

Formosan grass lizard: Does it need UVB lighting?

UVB: Essential (UVB 10.0).

Formosan grass lizard: How long do they live?

Life expectancy: 5–12 years.

Formosan grass lizard: Is it suitable for beginners?

Partly – manageable with some prior knowledge (difficulty: Beginner with some knowledge).

Climate

Daytime temperature
24–29 °C
Night temperature
18–21 °C
Basking spot
Basking spot 32–35 °C
Humidity
65–85 %
UVB
Essential (UVB 10.0)

Enclosure

Minimum size
80×40×50 cm for a group
Substrate
Forest-floor substrate with dense grasses and thin twigs

Feeding

Food
Crickets, house crickets, roaches and wax moths
Feeding interval
adults 3–4×/week

Key facts

Adult size
18–25 cm
Life expectancy
5–12 years
Origin
Taiwan
Protection status
Not listed under CITES
Brumation
No winter rest, just a cooler spell
Cohabitation
Keeping as a harem (1.2 or 1.3) or in pairs (1.1) is possible; males must never be housed together. Several males fight over territory and basking spots until one is injured or sits permanently in a corner. Females usually get along but need their own basking and hiding spots; feed separately if sizes differ.

Notes

Warmer and more humid than the mainland species.

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Related species

All species in the care wiki →

What you need to start

To keep Formosan grass lizard (Takydromus formosanus) you typically need: a suitable enclosure (80×40×50 cm for a group), substrate (Forest-floor substrate with dense grasses and thin twigs), 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: 30 October 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Takydromus, https://en.wikipedia.org/wiki/Takydromus_formosanus

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).