Checkered garter snake (Thamnophis marcianus)

Short answers

Checkered garter snake: How big does the enclosure need to be?

From 115×70×45 cm (minimum size per the 1997 expert report, garter snakes).

Checkered garter snake: What temperature does it need?

Daytime 24–30 °C, basking spot 32 °C, at night 16–20 °C.

Checkered garter snake: Does it need UVB lighting?

UVB: Recommended.

Checkered garter snake: How long do they live?

Life expectancy: 8–12 years.

Checkered garter snake: Is it suitable for beginners?

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

Climate

Daytime temperature

24–30 °C

Night temperature

16–20 °C

Basking spot

32 °C

Humidity

50–65 %

UVB

Recommended

Enclosure

Minimum size

from 115×70×45 cm (minimum size per the 1997 expert report, garter snakes)

Substrate

Coco humus or beech granulate, a large water basin, hides

Feeding

Food

Fish (low in thiaminase!), earthworms, frozen-thawed mice

Feeding interval

adults 2×/week, juveniles more often

Key facts

Adult size

60–90 cm (rarely just under 110 cm)

Life expectancy

8–12 years

Origin

The south-western USA, Mexico

Protection status

Not listed under CITES

Brumation

A winter rest of 8–10 weeks at 10–14 °C

Cohabitation

Group keeping is possible (similarly sized animals, and enough feeding spots). Even where group keeping works, the feeding accident remains the risk: always feed them singly, ideally in separate boxes, and only house animals of roughly the same size together.

Notes

Diurnal and constantly on the move — one of the few snakes you can genuinely watch. With a pure fish diet, use varieties low in thiaminase, or vitamin B1 deficiency threatens.

Do you keep this species?

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

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Related species

• Ahumada's alpine garter snake (Thamnophis ahumadai) – Expert
• Bogert's garter snake (Thamnophis bogerti) – Expert
• Butler's garter snake (Thamnophis butleri) – Intermediate
• Cope's mountain meadow snake (Thamnophis copei) – Expert
• Fox's mountain meadow snake (Thamnophis foxi) – Expert
• Yellow-throated garter snake (Thamnophis pulchrilatus) – Expert
• Common garter snake (Thamnophis sirtalis) – Beginner
• Godman's garter snake (Thamnophis godmani) – Expert

All species in the care wiki →

What you need to start

To keep Checkered garter snake (Thamnophis marcianus) you typically need: a suitable enclosure (from 115×70×45 cm (minimum size per the 1997 expert report, garter snakes)), substrate (Coco humus or beech granulate, a large water basin, hides), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.