Reptile · Rat snake
Gray rat snake care guide
Pantherophis spiloides
The gray rat snake is a beginner-level rat snake from E United States, S Ontario (as gray ratsnake). Adults reach 120–180 cm and live 15–25 years in captivity. Threatened in Ontario; never collect wild animals, buy captive-bred only. Solitary.
- Enclosure 150 × 60 × 90 cm
- Temp Warm 28–30°C, cool 20–22°C
- Humidity 40–60%
How much does a gray rat snake cost in Canada?
Gray rat snake quick facts
- Skill level
- Beginner
- Adult size
- 120–180 cm
- Lifespan
- 15–25 years
- Activity
- Diurnal
- Native range
- E United States, S Ontario (as gray ratsnake)
- Minimum enclosure
- 150 × 60 × 90 cm (59 × 24 × 35 in, ≈ 214 US gal)
- Housing
- Best kept alone.
- Temperature
- Warm 28–30°C, cool 20–22°C
- Humidity
- 40–60%
- UVB
- Recommended
- Diet
- Carnivore – frozen/thawed mice and rats
- Bioactive style
- Temperate forest
Gray rat snake enclosure & bioactive setup
Give one adult at least 150 × 60 × 90 cm (59 × 24 × 35 inches). Best kept alone. This species suits a temperate forest bioactive build.
- Leaf litter2 cm
- 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 20–22°C. Humidity: 40–60%. UVB: Recommended.
What does a gray rat snake eat?
Carnivore – frozen/thawed mice and rats. Feed one appropriately sized thawed rodent every 10–14 days.
Handling, temperament & health
Often defensive when young; calms with handling.
Health watch: Watch for respiratory infections and mites.
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 gray rat snake bioactive
Quantities are for one minimum-size enclosure (150 × 60 × 90 cm).
Jurassic ABG Terrarium Mix
Bioactive soil layer, 10 cm
Coco Husk Chips - Dried Loose Pack
Optional top layer (coco husk chips)
Red Oak Leaves 15/Pack
Leaf litter – food and cover for the clean-up crew
Cork Bark Flats
A hide in each temperature zone
Cork Branches
Many colubrids climb more than people expect
Gray rat snake FAQ
Is the gray rat snake good for beginners?
Yes – the gray rat snake is a good choice for beginners. Often defensive when young; calms with handling.
What size enclosure does a gray rat snake need?
At least 150 × 60 × 90 cm (about 59 × 24 × 35 inches, roughly 214 US gallons) for one adult. Best kept alone.
How much does a gray rat snake cost in Canada?
Typically $60–200 CAD to buy, about $1250–2280 CAD for a complete bioactive enclosure, and $200–350 CAD a year to keep.
What temperature and humidity does a gray rat snake need?
Temperature: Warm 28–30°C, cool 20–22°C. Humidity: 40–60%.
What does a gray rat snake eat?
Carnivore – frozen/thawed mice and rats. Feed one appropriately sized thawed rodent every 10–14 days.
Similar species
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.