
California kingsnakes are a popular pet snake species, and for good reason - they're relatively small, docile, and easy to care for. They thrive in well-ventilated enclosures with a temperature range of 75-85°F.
To create a suitable environment, you'll want to provide a secure, escape-proof enclosure with a substrate like aspen or cypress mulch. This will help maintain humidity levels and prevent bacterial growth.
A 20-30 gallon tank is a good size for a single adult California kingsnake, with a hiding place or two to reduce stress. You can also add some calcium sand or a shallow water dish for drinking and soaking.
Remember to research local laws and regulations regarding pet snakes before bringing a California kingsnake home, as some areas may have specific restrictions or requirements.
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Care and Housing
A 48x18x18" enclosure is recommended for adult California Kingsnakes, providing ample space for exercise and exploration.
These snakes are active and inquisitive, so a large enclosure is essential for their well-being. Housing them in a smaller space can lead to stress and boredom.

A 40-gallon equivalent, escape-proof terrarium is ideal for an adult California kingsnake of about 4 to 5 feet in length. This size allows for a thermal gradient with a warm side and a cool side, making it easy to create a comfortable environment.
For hatchlings, 20- or 30-gallon enclosures are suitable until they grow to full size. You can also consider all-in-one solutions using 20- and 30-gallon equivalent enclosures, which come with most of the necessary equipment.
Aspen shavings are a good substrate for California Kingsnakes, as they enable burrowing and make cleaning up after the snake easy.
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Enclosure
For your California King Snake, you'll want to provide a suitable enclosure that meets their specific needs. A 20-gallon terrarium or larger is recommended, with a secure, escape-proof opening. Make sure to choose a long, narrow tank over a tall, wide one, as King Snakes are known to climb.
A 20-gallon tank is a good starting point, but you may need to upgrade as your snake grows. A 40-gallon tank or larger is ideal for adult California King Snakes, providing ample space for exercise and exploration.
For more insights, see: King Snake California

When selecting an enclosure, consider the following:
As for the enclosure's layout, include tree branches or driftwood for your snake to climb and hide. A temperature gradient is also essential, with a warm end around 80°F and a cool end around 70°F. Use heat pads or basking lights to maintain a temperature range of 88-90°F in the basking spot.
Lighting and Temperature
California kingsnakes don't need special lighting if their enclosure is in a room with natural light, but avoid placing it near a window where sunlight can focus and cause overheating.
Choose a UVB light with a Zone range of 0.7 to 1.0 and a maximum UVI of 1.1 to 3.0 in the basking zone, as this will meet their needs.
In the wild, California kingsnakes thermoregulate by moving about to find and maintain their preferred temperature, so in captivity, you should provide a warm end and a cool end of the enclosure.

A temperature gradient is essential, with the warm end at around 85°F and the cool end in the 70s.
You can achieve this with various heaters, pads, cables, and tape available from dealers, but be aware that using lights for heat is not an efficient use of energy and has disadvantages.
For example, warming the air with a light may not be enough to warm the floor, which could still be too cool for the snake.
If you do use lights for heat, be sure to place them on one side of the enclosure and avoid using "hot rocks" as they can cause burns.
Heat pads are a preferred way to heat ground-dwelling snakes, and it's essential to use them with a properly fitting cage carpet to prevent burns.
Nighttime temperatures can drop as low as 70°F as an ambient temperature, so be prepared to adjust the heat accordingly.
Basking lights can be used with heat pads if warmer temperatures are needed, and rheostats, thermostats, and timers can be used to control the heat source automatically and more precisely.
If you're using a heat-emitting bulb, be sure to put a guard around it to prevent the snake from curling around it and inflicting burns.
A low wattage LED or basking bulb can be used to provide a natural photoperiod, but it's not strictly necessary.
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Food & Feeding

California kingsnakes are carnivores and need a diet rich in protein to thrive. They have a good appetite and will readily eat defrost mice or rats in captivity.
The ideal foods for California kingsnakes are frozen/thawed mice or small rats, which are much safer than live rodents that can bite and potentially kill your snake. Live rodents can inflict wounds to your kingsnake, so it's best to stick with fresh killed and frozen-thawed mice.
California kingsnakes in the wild feed on a variety of animals, including frogs, lizards, fish, rodents, birds, and other small woodland creatures. In captivity, they should be fed rodents, usually mice, which are readily available.
To maintain a healthy weight, it's essential to feed your California kingsnake based on its size and needs, rather than its appetite. An obese snake can have heart, liver, and other organ problems, which can affect its lifespan.
Here's a general rule of thumb for feeding your California kingsnake:
- Young snakes (10-18 inches): start with pinkies
- Maturing young snakes (18-26 inches): transition to fuzzies or hoppers
- Nearing full-grown Cali Kings (26-40 inches): move to adult mice
- Full-grown California King Snakes (40-60 inches): stick with adult mice or move to weaned mice depending on girth and size
It's also essential to give your California kingsnake time after feeding. Wait until the food baby (or mouse bulge) goes away before handling your snake again, as they are vulnerable and may regurgitate their meal as a defense/escape mechanism.
Handling and Temperament

California kingsnakes are wild by nature and may exhibit defensive behavior such as shaking their tail and striking when first handled. This is a natural response to discourage predators.
Regular, gentle handling is key to helping your snake become accustomed to you and more trusting of people. Support the weight of your snake, creating a treadmill with your hands as your snake moves freely.
Some California kingsnakes may have a strong cannibalistic drive, so it's best to house them individually. They may also exhibit a strong feeding response, so use a snake hook to aid while handling if necessary.
Here are some guidelines to keep in mind when handling your California kingsnake:
- Give your snake several days to get used to their new environment before handling.
- Handle your snake when it's calm and not about to shed or digest food.
- Support the weight of your snake and keep your hands away from its face.
- Lift your snake from behind so it doesn't see you looming over it.
If you handle your snake regularly, especially when it's younger, it will become more trusting and docile over time. A good goal is to handle your snake 2-3 times per week at least.
Handling and Temperament
Handling a California kingsnake requires patience and gentle care. They are wild by nature and may exhibit defensive behavior such as shaking their tail and striking at you.

To begin handling, use the hand-over-hand method with gentle friction to slow forward progress. Staying away from their face is crucial to avoid startling them.
It's essential to recognize the signs of fear and stress in your snake, including urinating or defecating on you. These behaviors indicate that your snake is feeling threatened.
Give your snake several days to adjust to its new environment before attempting to handle it. Regular, gentle handling will help your snake become more trusting of people.
Support the weight of your snake, creating a treadmill with your hands as it moves freely. Lift your snake from behind to avoid looming over it.
California kingsnakes have a strong cannibalistic drive, so it's best to house them individually. They are generally docile, but may exhibit a strong feeding response, making handling more challenging.
Here are some tips to avoid misunderstandings between you and your snake:
- Wash your hands before feeding to avoid any confusion.
- Use tongs to feed your snake.
- Open the tank regularly for exercise and stimulation, rather than just for feeding.
By following these guidelines, you can establish a healthy relationship with your California kingsnake and enjoy regular handling sessions.
Hardcore Hide

California King Snakes are known to enjoy burrowing, so it's essential to provide them with a suitable hide for this purpose.
They like to have a little cave to curl up in, which can be achieved with a good hide.
California King Snakes are not fond of shredded newspaper as bedding, so it's best to opt for a more suitable option.
A good hide can make a huge difference in your snake's comfort level.
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Health and Hygiene
Maintaining a clean and healthy environment for your California King snake is crucial for its well-being. Change your snake's water every day to keep it fresh.
Regular cleaning of the water bowl is also essential. Scrub and sanitize the water bowl at least once a week to prevent residue buildup, which can lead to the growth of mold and bacteria.
Return
A California Kingsnake's home should be a clean and safe environment, and regular return to a clean enclosure is crucial for their health.

One of the most important things to remember is to clean the enclosure regularly. This includes removing any feces or uneaten food, and replacing the substrate completely every 2-3 months.
California Kingsnakes like to burrow, so it's essential to provide a clean and safe substrate for them to do so. ReptiChip Premium Coconut Substrate is a great option, as it's odor-free, easy to clean, and allows for ample burrowing.
Snakes like to take a dip in water, so it's essential to provide a large enough water bowl for them to do so. A water bowl that's at least 1-2 times the length of the snake is recommended.
Here's a rough guide to cleaning your California Kingsnake's enclosure:
- Remove feces and uneaten food daily
- Replace substrate every 2-3 months
- Clean the water bowl daily
- Disinfect any decorations or accessories regularly
By following these simple steps, you can help keep your California Kingsnake's enclosure clean and safe, and promote their overall health and well-being.
Health Information
As a snake owner, it's essential to recognize the signs of a healthy snake. Prior to shedding, your snake's eyes will turn a blue or milky color.

Most snakes don't eat when shedding, and this is completely normal. It's a natural process that can take a few days.
Stomatitis, or mouth rot, is a serious issue that can be identified by a cheesy substance around your snake's gums. This can cause debris to get stuck in your snake's mouth.
Dirty environments can lead to high bacteria growth, which can cause illness in your snake. Regular cleaning of the terrarium is crucial to prevent this.
A healthy shed comes off in one piece, and if you notice any bumps, white, red, or black discolorations on your snake's skin, it may be a sign of skin mites.
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Water Habits & Practices
Keeping your California King Snake's water bowl clean is crucial for its health. Fresh water should be available at all times, and it's best to change the water every day.
To prevent bacterial growth, scrub and sanitize the water bowl at least once a week. This will keep your snake safe from residue and red shower mold that can build up quickly.

A large water bowl is necessary for your snake to soak in, especially when it's hot. This is a normal behavior, and it's a sign that your snake is trying to regulate its body temperature.
Here's a quick water bowl maintenance schedule to keep in mind:
If your snake sits in the water bowl for a while and sheds its skin, it's a normal process. However, if it doesn't shed its skin, there could be other reasons why it's in the water bowl, such as being too hot or having mites.
Brumation
Brumation is a natural process that helps kingsnakes prepare for breeding. It's essential to ensure the snake's digestive track is empty before brumation, so stop feeding at least two to three weeks before reducing the temperature.
In the wild, brumation happens naturally, but in captivity, it's optional, unless you're planning to breed. If you're looking to breed, brumation helps the kingsnakes breed in the spring after brumating.
To brumate, reduce the temperature to between 55 and 60F around November. This can be challenging indoors, so you might need to use an outbuilding or a creative solution like we did – using an attic with heat mats on thermostats to maintain a constant temperature.
We brumate our snakes for around 3 months, but some people prefer a shorter period of 6 weeks. The key is to give the snake a clear signal that spring has arrived, ready for breeding.
After brumation, bring the temperature up to normal and feed the snake after a week of acclimatization. Females should be offered extra food as they'll be using all their energy for reproduction.
Life Cycle and Breeding
When breeding Californian Kingsnakes, it's essential to ensure your adults are healthy and genetically free of problems that might be passed down.
You should also make sure the female is fully mature, as breeding a snake too early can cause serious health problems.
Before breeding, know who your local exotics veterinarian is, and have the funds to take care of any medical needs that might arise.
Life Span

California kingsnakes can live for more than 20 years.
Female California kingsnakes often produce fertile eggs into their low teens. This suggests they remain fertile for a significant portion of their lives.
Maintaining a California King Snake is fairly easy, making them a great pet for snake enthusiasts.
Breeding
Before you breed your Californian Kingsnakes, make sure your adults are healthy and genetically free of any problems that might be passed down.
You should also consider the age of your female snake, as breeding too early can cause serious health problems.
The female should be fully mature before breeding, and even then, problems can still arise during the process.
It's essential to have a local exotics veterinarian on hand and to have the funds to cover any medical needs that might arise.
You'll also need to ensure you can provide separate housing for the hatchlings, get them feeding, and find new homes for them.
Frequently Asked Questions
Do kingsnakes need a heat lamp?
Yes, kingsnakes need both a heat lamp and an under-tank heater to maintain a suitable temperature. A combination of a heat mat and a heat lamp, such as a Habistat Heat Mat and a Daylight Exo Terra heat lamp, is recommended.
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