Mexican black kingsnake (Lampropeltis nigrita)
Photo: William Szilveszter (Lokheed at English Wikipedia) / CC BY 3.0 · via Wikimedia Commons

Reptile · Kingsnake & milksnake

Mexican black kingsnake care guide

Lampropeltis nigrita

Beginner

The mexican black kingsnake is a beginner-level kingsnake & milksnake from NW Mexico (Sonora, Sinaloa). Adults reach 90–120 cm and live 15–20 years in captivity. Strictly solitary; use a hook to signal handling time versus feeding time.

  • Enclosure 120 × 60 × 60 cm
  • Temp Warm 29–31°C, cool 22–24°C
  • Humidity 40–60%

How much does a mexican black kingsnake cost in Canada?

Animal$120–250Typical captive-bred price
Bioactive enclosure$860–1570Enclosure $470–890 · equipment $190–420 · bioactive supplies ≈ $220
Yearly upkeep$200–350Food, supplements, bulbs, power, vet fund
First year total$1180–2170All prices CAD, estimates

Mexican black kingsnake quick facts

Skill level
Beginner
Adult size
90–120 cm
Lifespan
15–20 years
Activity
Diurnal
Native range
NW Mexico (Sonora, Sinaloa)
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

Mexican black kingsnake 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.

  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 29–31°C, cool 22–24°C. Humidity: 40–60%. UVB: Recommended.

What does a mexican black kingsnake eat?

Carnivore – frozen/thawed mice. Feed one appropriately sized thawed mouse every 7–10 days; juveniles every 5–7 days.

Handling, temperament & health

Generally docile once settled; juveniles can be nippy and musky.

Health watch: Watch for obesity, 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 mexican black kingsnake bioactive

Quantities are for one minimum-size enclosure (120 × 60 × 60 cm).

Mexican black kingsnake FAQ

Is the mexican black kingsnake good for beginners?

Yes – the mexican black kingsnake is a good choice for beginners. Generally docile once settled; juveniles can be nippy and musky.

What size enclosure does a mexican black kingsnake 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 mexican black kingsnake cost in Canada?

Typically $120–250 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 mexican black kingsnake need?

Temperature: Warm 29–31°C, cool 22–24°C. Humidity: 40–60%.

What does a mexican black kingsnake eat?

Carnivore – frozen/thawed mice. Feed one appropriately sized thawed mouse every 7–10 days; juveniles every 5–7 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.