Pygmy rattlesnake (Sistrurus miliarius)
Photo: Unknown / Public domain · via Wikimedia Commons

Reptile · Venomous snake

Pygmy rattlesnake care guide

Sistrurus miliarius

ExpertMedically significant venomMay need a permit

The pygmy rattlesnake is a expert-level venomous snake from SE United States. Adults reach 40–60 cm and live 15–20 years in captivity. A small rattlesnake that still needs full venomous protocols.

  • Enclosure 60 × 45 × 45 cm
  • Temp Warm 28–30°C, cool 22°C
  • Humidity 50–70%

How much does a pygmy rattlesnake cost in Canada?

Animal$200–500Typical captive-bred price
Bioactive enclosure$490–930Enclosure $190–370 · equipment $190–420 · bioactive supplies ≈ $120
Yearly upkeep$200–350Food, supplements, bulbs, power, vet fund
First year total$890–1780All prices CAD, estimates

Pygmy rattlesnake quick facts

Skill level
Expert
Adult size
40–60 cm
Lifespan
15–20 years
Activity
Crepuscular
Native range
SE United States
Minimum enclosure
60 × 45 × 45 cm (24 × 18 × 18 in, ≈ 32 US gal)
Housing
Best kept alone.
Temperature
Warm 28–30°C, cool 22°C
Humidity
50–70%
UVB
Recommended
Diet
Carnivore – frozen/thawed mice, lizards, frogs
Bioactive style
Temperate forest

Pygmy rattlesnake enclosure & bioactive setup

Give one adult at least 60 × 45 × 45 cm (24 × 18 × 18 inches). Best kept alone. This species suits a temperate forest bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Terrarium Mix10 cm

Keep a moisture gradient: drier on top and at the warm end, slightly moist underneath and at the cool end.

Temperature: Warm 28–30°C, cool 22°C. Humidity: 50–70%. 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 pygmy rattlesnake eat?

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

Handling, temperament & health

Small but irritable; tools only.

Health watch: Watch for feeding refusal and stress.

Cleaning & maintenance schedule

Daily

  • Check temperatures and refresh water.

Weekly

  • Lightly moisten the cool end and lower soil.
  • Spot-clean waste.

Monthly

  • Top up leaf litter; check hides and branches are stable.

Yearly

  • Partially refresh soil in high-traffic areas.
  • Replace UVB bulbs (if used).

Recommended for a pygmy rattlesnake bioactive

Quantities are for one minimum-size enclosure (60 × 45 × 45 cm).

Pygmy rattlesnake FAQ

Is the pygmy rattlesnake good for beginners?

No – the pygmy rattlesnake is a specialist animal for expert keepers only. Small but irritable; tools only.

What size enclosure does a pygmy rattlesnake need?

At least 60 × 45 × 45 cm (about 24 × 18 × 18 inches, roughly 32 US gallons) for one adult. Best kept alone.

How much does a pygmy rattlesnake cost in Canada?

Typically $200–500 CAD to buy, about $490–930 CAD for a complete bioactive enclosure, and $200–350 CAD a year to keep.

What temperature and humidity does a pygmy rattlesnake need?

Temperature: Warm 28–30°C, cool 22°C. Humidity: 50–70%.

What does a pygmy rattlesnake eat?

Carnivore – frozen/thawed mice, lizards, frogs. Feed one small prey item 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.