Reptoria

Spotted tree monitor (Varanus scalaris)

Spotted tree monitor (Varanus scalaris), typical appearance of the species

Monitors & tegus · Difficulty: Intermediate

Key facts and care guidance for Spotted tree monitor (Varanus scalaris) (origin: Northern Australia – open woodland, trees with hollows and loose bark). Adult size around ~45–60 cm total length (SVL ~18–28 cm). Life expectancy 10–15 years. The values below are carefully researched guidance.

Short answers

Spotted tree monitor: How big does the enclosure need to be?

From 120×60×120 cm for one animal; for a pair from 140×60×120 cm (15 % more floor space per additional animal, as in the 1997 expert report).

Spotted tree monitor: What temperature does it need?

Daytime 28–33 °C, basking spot 50–60 °C, at night 20–24 °C.

Spotted tree monitor: Does it need UVB lighting?

UVB: UVB needed (Ferguson zone 2–3, UV index 2–4).

Spotted tree monitor: How long do they live?

Life expectancy: 10–15 years.

Spotted tree monitor: Is it suitable for beginners?

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

Climate

Daytime temperature
28–33 °C
Night temperature
20–24 °C
Basking spot
50–60 °C
Humidity
50–70 % (northern Australian, varying with the season)
UVB
UVB needed (Ferguson zone 2–3, UV index 2–4)

Enclosure

Minimum size
from 120×60×120 cm for one animal; for a pair from 140×60×120 cm (15 % more floor space per additional animal, as in the 1997 expert report)
Substrate
A sand and soil mix, vertical cork and bark, branches, tree hollows, leaf litter; a water dish

Feeding

Food
Insects (roaches, locusts, crickets), occasionally small rodents or an egg
Feeding interval
adults 2–3×/week, juveniles daily

Key facts

Adult size
~45–60 cm total length (SVL ~18–28 cm)
Life expectancy
10–15 years
Origin
Northern Australia – open woodland, trees with hollows and loose bark
Protection status
CITES Appendix II / EU Regulation Annex B; Australia allows no export of wild animals → captive-bred animals only
Brumation
A slight seasonal reduction is possible; no strict winter rest
Cohabitation
Keeping them singly is the standard; territorial, and males are never kept together. A compatible pair or breeding group only in a very large, heavily structured enclosure with visual barriers and ongoing supervision.

Notes

A small, climbing-keen tree monitor (also the "spotted tree monitor"); it needs plenty of structure and a locally very hot, focused basking spot despite its small body.

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Related species

All species in the care wiki →

What you need to start

To keep Spotted tree monitor (Varanus scalaris) you typically need: a suitable enclosure (from 120×60×120 cm for one animal; for a pair from 140×60×120 cm (15 % more floor space per additional animal, as in the 1997 expert report)), substrate (A sand and soil mix, vertical cork and bark, branches, tree hollows, leaf litter; a water dish), 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: https://de.wikipedia.org/wiki/Gebänderter_Baumwaran, https://reptile-database.reptarium.cz/species?genus=Varanus&species=scalaris

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).