Reptile · Kingsnake & milksnake
Sinaloan milk snake care guide
Lampropeltis polyzona
The sinaloan milk snake is a beginner-level kingsnake & milksnake from W and E Mexico. Adults reach 100–130 cm and live 15–20 years in captivity. Strictly solitary.
- Enclosure 120 × 60 × 60 cm
- Temp Warm 29–31°C, cool 22–24°C
- Humidity 40–60%
How much does a sinaloan milk snake cost in Canada?
Sinaloan milk snake quick facts
- Skill level
- Beginner
- Adult size
- 100–130 cm
- Lifespan
- 15–20 years
- Activity
- Nocturnal
- Native range
- W and E Mexico
- Minimum enclosure
- 120 × 60 × 60 cm (47 × 24 × 24 in, ≈ 114 US gal)
- Housing
- Best kept alone.
- Temperature
- Warm 29–31°C, cool 22–24°C
- Humidity
- 40–60%
- UVB
- Recommended
- Diet
- Carnivore – frozen/thawed mice
- Bioactive style
- Temperate forest
Sinaloan milk snake enclosure & bioactive setup
Give one adult at least 120 × 60 × 60 cm (47 × 24 × 24 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 29–31°C, cool 22–24°C. Humidity: 40–60%. UVB: Recommended.
What does a sinaloan milk snake eat?
Carnivore – frozen/thawed mice. Feed one appropriately sized thawed mouse every 7–10 days; juveniles every 5–7 days.
Handling, temperament & health
Flighty and musky when young; calmer as an adult.
Health watch: Watch for respiratory infections and stuck sheds.
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 sinaloan milk snake bioactive
Quantities are for one minimum-size enclosure (120 × 60 × 60 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
Sinaloan milk snake FAQ
Is the sinaloan milk snake good for beginners?
Yes – the sinaloan milk snake is a good choice for beginners. Flighty and musky when young; calmer as an adult.
What size enclosure does a sinaloan milk snake need?
At least 120 × 60 × 60 cm (about 47 × 24 × 24 inches, roughly 114 US gallons) for one adult. Best kept alone.
How much does a sinaloan milk snake cost in Canada?
Typically $100–250 CAD to buy, about $860–1570 CAD for a complete bioactive enclosure, and $200–350 CAD a year to keep.
What temperature and humidity does a sinaloan milk snake need?
Temperature: Warm 29–31°C, cool 22–24°C. Humidity: 40–60%.
What does a sinaloan milk snake eat?
Carnivore – frozen/thawed mice. Feed one appropriately sized thawed mouse every 7–10 days; juveniles every 5–7 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.