Reptoria

Western ribbon snake (Thamnophis proximus)

Western ribbon snake (Thamnophis proximus), typical appearance of the species

Snakes · Difficulty: Beginner

Key facts and care guidance for Western ribbon snake (Thamnophis proximus) (origin: The central USA to Costa Rica). Adult size around 60–110 cm. Life expectancy 8–12 years. The values below are carefully researched guidance.

Short answers

Western ribbon snake: How big does the enclosure need to be?

From 140×85×55 cm (minimum size according to the 1997 expert report, garter snakes).

Western ribbon snake: What temperature does it need?

Daytime 23–29 °C, basking spot 32 °C, at night 16–20 °C.

Western ribbon snake: Does it need UVB lighting?

UVB: Essential (UVB 5.0).

Western ribbon snake: How long do they live?

Life expectancy: 8–12 years.

Western ribbon snake: Is it suitable for beginners?

Yes – it is considered suitable for beginners (difficulty: Beginner).

Climate

Daytime temperature
23–29 °C
Night temperature
16–20 °C
Basking spot
32 °C
Humidity
55–70 %
UVB
Essential (UVB 5.0)

Enclosure

Minimum size
from 140×85×55 cm (minimum size according to the 1997 expert report, garter snakes)
Substrate
Bark mulch, climbing branches, planting, a large water dish

Feeding

Food
Fish, earthworms, frozen-thawed mice
Feeding interval
2×/week

Key facts

Adult size
60–110 cm
Life expectancy
8–12 years
Origin
The central USA to Costa Rica
Protection status
Not listed under CITES
Brumation
A cooler spell of 8–12 weeks
Cohabitation
A group is possible. Water and garter snakes are the exception among colubrids: they lie together willingly and can be kept in groups. But the feeding accident remains the risk here too — so always feed them singly, ideally in separate boxes, and only house animals of roughly the same size together.

Notes

Very slender and long-tailed; it climbs markedly more than other garter snakes. It needs planting and branches above the water dish.

Do you keep this species?

Add your animal to Reptoria – Reptoria reminds you about feeding and shedding. Add your animal for free →

Look for Western ribbon snake (Thamnophis proximus) in the marketplace →

Related species

All species in the care wiki →

What you need to start

To keep Western ribbon snake (Thamnophis proximus) you typically need: a suitable enclosure (from 140×85×55 cm (minimum size according to the 1997 expert report, garter snakes)), substrate (Bark mulch, climbing branches, planting, a large 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/Westliche_B%C3%A4ndernatter, https://reptile-database.reptarium.cz/species?genus=Thamnophis&species=proximus

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).