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Mexican Black Kingsnake© William Szilveszter ( Lokheed at English Wikipedia ) / CC BY 3.0

Mexican Black Kingsnake

The Mexican Black Kingsnake is a striking nonvenomous snake known for its uniform, glossy black-brown body. In direct light it takes on a deep chocolate hue, with scales that catch a subtle blue sheen. Calm and easygoing by nature, it tolerates handling well, making it a favorite starter snake for reptile keepers. Hardy and low-maintenance, it can live 20 to 30 years, making it a long-term companion for those ready for the commitment.

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Mexican Black Kingsnake key facts

Care level
Beginner-friendly
Lifespan
20-30 years
Size
90-120cm, sometimes over 1.5m in captivity, weighing up to about 1.3kg
Temperature
Humidity
40〜60%
Diet
Frozen-thawed mice; in the wild rodents, lizards and other snakes
Temperature & Humidity
Create a gradient with a basking surface of 29-32C and a cool side of 21-26C. Aim for average humidity of 40-60 per cent, naturally a little higher on the cool side and at night. Raising humidity before a shed helps prevent retained skin.
Enclosure
A minimum enclosure of about 120 x 60 x 60 cm per adult is recommended, and larger is better. It is active and explores a great deal, so provide branches and hides on both the warm and cool sides. It is strong and an accomplished escaper, so use a front-opening enclosure that locks securely.
Diet & Feeding
It is carnivorous and in captivity is fed appropriately sized frozen-thawed mice. In the wild it takes rodents, lizards and other snakes. Always feed it alone in the enclosure.
Temperament
Kingsnakes are ophiophagous and will eat each other, so they must be kept alone. They are generally docile and easy to handle, but wash your hands after feeding so they do not mistake them for prey.
Notes
The species is not listed in the CITES appendices, and it is neither a specified animal nor an invasive alien species under Japanese law. It is non-venomous and harmless to people, but escaped snakes are hard to recover, so keep the enclosure securely locked. Sources differ on its taxonomic status, so check the stated lineage and locality when buying an animal.
TraitsKingsnakeReptileNorth AmericaBeginner friendly

About Mexican Black Kingsnake

A hardy, docile nonvenomous snake with a glossy black-brown body. Easy to care for and popular as a beginner reptile, with a lifespan of 20 to 30 years.

7 things to know before welcoming a Mexican Black Kingsnake

  1. 1Enclosure Size Guide

    Adults reach 90 to 120 cm in total length, so provide an enclosure sized to match along with several hiding spots. As a ground-dwelling species, focus on horizontal space and substrate rather than height.

  2. 2Temperature Setup

    Create a temperature gradient in the enclosure so your snake can move between a warm basking spot and a cooler area. High humidity isn't necessary, as this species prefers a relatively dry environment.

  3. 3Keep Them Alone

    Kingsnakes may prey on other snakes, so each individual should be housed in its own separate enclosure. If you plan to keep more than one, never house them together.

  4. 4Shedding Signs

    Before shedding, the skin may look dull and the eyes can turn cloudy white — this is a normal part of the process. Provide a humid hide during this period and avoid handling until shedding is complete.

  5. 5Feeding Basics

    Pre-killed, thawed frozen mice are the standard diet for this species. Adjust prey size and feeding frequency based on your snake's age and body size.

  6. 6Temperament & Handling

    Mexican Black Kingsnakes are generally calm and tolerate handling well, which is part of their appeal. Still, avoid handling around shedding or right after feeding, and go at your snake's own pace.

  7. 7A Long-Term Commitment

    With a lifespan of 20 to 30 years, think carefully about your enclosure setup and the daily care involved before bringing one home. It's a hardy, easy-to-keep species, but still a long-term responsibility.

Frequently asked questions about Mexican Black Kingsnake

Q.Can it be kept with other snakes?
A.No, kingsnakes may prey on other snakes, so cohabitation should be avoided. Always house each individual in its own separate enclosure.
Q.Is this species suitable for beginners?
A.Yes, its hardiness and calm temperament make it a popular starter snake. It's manageable as long as you keep up with basic temperature control and feeding.
Q.How big does it get?
A.Adults typically reach 90 to 120 cm in total length. Some captive individuals exceed 1.5 meters, with a maximum weight of around 1.3 kg.
Q.How long of a commitment is keeping one?
A.With a lifespan of 20 to 30 years, it requires a long-term commitment to daily care. Consider this carefully before bringing one home.
Q.Is this species subject to any special regulations?
A.The Mexican Black Kingsnake is not subject to CITES.

Useful tools for Mexican Black Kingsnake care

🦎Reptile Temperature CalculatorView basking, cool-side, night temps, humidity & UVB requirements by species🧬Morph Genetics CalculatorCalculate morph breeding outcomes for leopard geckos & ball pythons📅Breeding CalendarVisual monthly breeding season guide for each species🍽️Feeding GuideCheck feeding frequency, portion sizes & supplements by species and growth stage🗓️Seasonal Care CalendarMonthly care events and seasonal management tips at a glanceElectricity Cost SimulatorCalculate monthly and annual electricity costs for care equipment with presets🧬Breeding PlannerSelect parent varieties to view breeding schedules and offspring patterns🧮Care Cost SimulatorEstimate initial, monthly & annual costs by category, care level and quantity⚖️Species Comparison ToolCompare two species side by side: care difficulty, size, lifespan & temperature🎯Pet Match DiagnosticAnswer 7 questions to find your top 3 perfect pets📋Lifetime Cost SimulatorEstimate lifespan and lifetime costs by species for dogs, cats, reptiles and more🚚Transport Safety CheckerCheck transport safety score and precautions by category, season, method and distance🏠Multi-Pet Budget PlannerPlan budget for multiple pets with shared and individual cost breakdown💊Medication Dosage CalculatorCalculate proper medication dosage by body weight and medicine type for fish, reptiles, and small animals⏱️Quarantine & Acclimation TimerManage quarantine periods and acclimation steps with countdown timers. Includes recommended durations by species

Learn more about Mexican Black Kingsnake in the encyclopedia

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Care difficulty, lifespan, size and diet — all basics covered.

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