Sidewinder (Crotalus cerastes)
Photo: derivative work: Victorrocha Crotalus_cerastes_mesquite_spring / CC BY-SA 3.0 · via Wikimedia Commons

Reptile · Venomous snake

Sidewinder care guide

Crotalus cerastes

ExpertMedically significant venomMay need a permit

The sidewinder is a expert-level venomous snake from SW United States, NW Mexico. Adults reach 45–80 cm and live 15–20 years in captivity. Needs deep fine sand to bury in and very dry conditions.

  • Enclosure 90 × 45 × 45 cm
  • Temp Warm 32–35°C, cool 24°C
  • Humidity 15–30%

How much does a sidewinder cost in Canada?

Animal$300–700Typical captive-bred price
Bioactive enclosure$530–960Enclosure $240–470 · equipment $150–320 · bioactive supplies ≈ $150
Yearly upkeep$200–400Food, supplements, bulbs, power, vet fund
First year total$1030–2060All prices CAD, estimates

Sidewinder quick facts

Skill level
Expert
Adult size
45–80 cm
Lifespan
15–20 years
Activity
Nocturnal
Native range
SW United States, NW Mexico
Minimum enclosure
90 × 45 × 45 cm (35 × 18 × 18 in, ≈ 48 US gal)
Housing
Best kept alone.
Temperature
Warm 32–35°C, cool 24°C
Humidity
15–30%
UVB
Recommended
Diet
Carnivore – frozen/thawed mice, lizards
Bioactive style
Arid desert

Sidewinder enclosure & bioactive setup

Give one adult at least 90 × 45 × 45 cm (35 × 18 × 18 inches). Best kept alone. This species suits a arid desert bioactive build.

  1. Soil and sand mix12 cm

A deep, sandy mix packed firmly lets burrows hold their shape; keep only the deepest layer faintly moist.

Temperature: Warm 32–35°C, cool 24°C. Humidity: 15–30%. UVB: Recommended.

Some Canadian provinces and many municipalities restrict or ban this species. Check your local bylaws and any provincial permit rules before buying.

What does a sidewinder eat?

Carnivore – frozen/thawed mice, lizards. Feed one small thawed mouse every 7–10 days.

Handling, temperament & health

Small but dangerous; tools only.

Health watch: Watch for feeding refusal and respiratory infections.

Cleaning & maintenance schedule

Daily

  • Check basking temperatures; refresh water (or mist lightly for species that drink droplets).

Weekly

  • Spot-clean waste.

Monthly

  • Lightly moisten one deep corner so burrows hold and isopods survive.
  • Check rock stacks are stable.

Yearly

  • Refresh the top layer; replace UVB bulbs on schedule.

Recommended for a sidewinder bioactive

Quantities are for one minimum-size enclosure (90 × 45 × 45 cm).

Sidewinder FAQ

Is the sidewinder good for beginners?

No – the sidewinder is a specialist animal for expert keepers only. Small but dangerous; tools only.

What size enclosure does a sidewinder need?

At least 90 × 45 × 45 cm (about 35 × 18 × 18 inches, roughly 48 US gallons) for one adult. Best kept alone.

How much does a sidewinder cost in Canada?

Typically $300–700 CAD to buy, about $530–960 CAD for a complete bioactive enclosure, and $200–400 CAD a year to keep.

What temperature and humidity does a sidewinder need?

Temperature: Warm 32–35°C, cool 24°C. Humidity: 15–30%.

What does a sidewinder eat?

Carnivore – frozen/thawed mice, lizards. Feed one small thawed mouse every 7–10 days.

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This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.