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Atlas / Library / Colubridae / California Kingsnake
BeginnerDiurnal · active nowIUCN LC
Colubridae

California Kingsnake

Lampropeltis californiaeงูคิงแคลิฟอร์เนีย

Narrower than the page we cite. The source we cite, read on 10 Aug 2026, gives a wider range than the one above. The narrowing is ours and nobody here has written down why. reptifiles.com

Photograph: Connor Long · CC BY-SA

Photographed by an observer on iNaturalist and published under a Creative Commons licence; the photographer and the licence are named under the image. It is not an animal of ours, and no animal was handled by us to produce it.

14:00
Day

Drag the sun. California Kingsnake is diurnal, so what it is doing changes with the light. The sheet states a night temperature, and the rail follows it.

Terrestrial · warm · middlingFrom the sheet: warm end 29–32°C, humidity 40–60%

The way of life is written in this sheet, word for word. The climate words summarise the two figures above them, they do not add to them.

National law is not global, and we hold no national wildlife law for any country, Thailand included. Check your own authority before buying or selling.

Back to the globe My keep

https://keepr.pet/husbandry/en/lampropeltis-californiae

‹ All husbandry guides
warm end29–32 °C
cool end21–27 °C
Humidity40–60 %
Enclosure120×60×60
Diet7–14 days

The numbers

Thermal gradient

152025303540 °C
21–27°Cool side
29–32°Warm side
24°Night

Day: a real gradient, 29–32°C warm against 21–27°C cool, so the animal chooses. Night: 24°C.

Why

Same scale on every sheet here, so two species compare by eye.

The sheet stateswarm 29-32 °C (85-90 °F) / cool 21-27 °C (70-80 °F) / night Down to ~24 °C

Humidity

40–60%Target RH
40% during shed

The sheet states40-60% (dry cage; mist for shed)

UVB

Optionalbeneficial

The sheet statesBeneficial (diurnal)

Identity

Adult size

1.75 m90–120 cm
1520100400 cm
90–120 cmNose to tail, adult

The size the sheet states for a grown animal.

Why

Two drawings, because they answer two questions. The silhouette is at true scale against a 1.75 m person: it says how big this animal actually is, which no number does for someone who has never seen one. The bar under it is logarithmic and shared by every sheet here, so a 2 cm isopod and a 4 m python both stay readable on the same axis and two species can be compared at a glance.

Family / Order
Colubridae / Squamata
Distribution
Deserts, grasslands, chaparral
Adult size
90–120 cm (up to 150)
Lifespan (captivity)
15–20+ yrs
Activity
Diurnal; terrestrial
Temperament
Hardy, active; strong feeder

Morphs

7 morphs, with how each one is inherited.

AlbinoRecessiveSuper form:
BananaLine-bredSuper form:
ChocolateRecessiveSuper form:
GhostcomboSuper form:
High White / CoastalLine-bredPatternSuper form:
LavenderRecessiveSuper form:
SnowcomboSuper form:

Enclosure and conditions

Enclosure

substrate29–32 °Cwater40–60 % RHUVB tube120 cm60 cm
warm sidewatersubstrateUVB tube
50100150200 cm
120 × 60 × 60 cmWidth × depth × height
72dm² of floor
Hides: not in our data

Drawn from the stated numbers. Only what the sheet states is drawn inside.

Why

The rectangle carries the exact width-to-height ratio of the figures above it, and the ruler under it places that width on the 0–250 cm scale every sheet here shares, so two species still compare at a glance. Nothing is added that the sheet does not name: a lamp drawn on a sheet that never mentions one would be invented equipment. What the sheet leaves out is listed rather than left blank, because an empty tank reads as « none needed ».

The sheet states120 × 60 × 60 cm (4×2×2 ft)

Warm side / basking
29–32 °C (85–90 °F)
Cool side
21–27 °C (70–80 °F)
Night
Down to ~24 °C
Humidity
40–60% (dry cage; mist for shed)
UVB
Beneficial (diurnal)
Min. size
120 × 60 × 60 cm (4×2×2 ft)
Substrate
Aspen / coco; secure lid (escape artist)
Water
Bowl deep enough to soak

What your climate adds

This sheet states a range to hold. Your local climate decides how much work holding it is. Pick the nearest city: nothing is sent anywhere, the choice stays in this browser.

Diet

Feeding rhythm

Juvenile
every 5–7 d
Adult
every 7–14 d
4Meals in 28 days · adult

Twenty-eight days, one row. Each band is a meal window. This sheet states a figure for each age, so each age has its row.

Why

The windows widen as they go because the interval is a range: four meals after a 10–14 day cycle land anywhere between day 40 and day 56. A young animal's row is drawn only where the sheet gives one: working it out by dividing the adult interval would be inventing a ration.

The sheet statesRodents (mice → small rats) · Every 7–14 days

Staple
Rodents (mice → small rats)
Prey size
≈ widest part of the body
Method
Frozen-thawed; strong feeding response
Juveniles
Every 5–7 days
Adults
Every 7–14 days
Note
Ophiophagous — eats other snakes; house alone

Behaviour and handling

HandlingTolerant; may musk or ball at first
CohabitationStrictly individual: cannibalistic
EscapePowerful: secure every gap
DefenseMusk / feign; bites minor
ChildrenGood, supervised

Reproduction

Sexual maturity
2–3 yrs
Sexing
Probing / popping
Clutch
5–12 eggs
Incubation
~55–65 days at 27–28 °C
Breeding trigger
2–3 month cool brumation

Common health problems

Respiratory infection
Signsclicking, mucus
Preventwarm gradient + ventilation
Mites
Signsblack dots, soaking
Preventquarantine new snakes
Retained shed
Signsstuck eye caps
Preventhumid hide during shed
Regurgitation
Signsfrom handling too soon / prey too big
Preventwait 48 h; correct prey size

When to see a vet

This is not veterinary advice. If red flags appear (open-mouth breathing, months of weight loss, 'stargazing', persistent regurgitation) consult a qualified exotic (herp) veterinarian. Quarantine new arrivals 30–90 days.

Good to know

  • 'King' because it eats other snakes: including venomous rattlesnakes, to which it's largely immune.
  • Comes in striped, banded, and countless designer morphs.
  • One of the hardiest, most reliable-feeding beginner snakes.
  • 'King' because it eats other snakes — including venomous rattlesnakes, to which it's largely immune.

Common questions

Can it live with another snake?

Never: it will eat other snakes.

Is it a good beginner snake?

Yes: hardy and a reliable eater.

Will it escape?

Yes if there's any gap: lock it down.

What it needs

Enclosure at least 120 × 60 × 60 cmbecause enclosure120 × 60 × 60 cm (4×2×2 ft)
A heat sourcebecause tempwarm 29-32 °C (85-90 °F) / cool 21-27 °C (70-80 °F) / night Down to ~24 °C
A thermostat to regulate itbecause tempwarm 29-32 °C (85-90 °F) / cool 21-27 °C (70-80 °F) / night Down to ~24 °C
A thermometerbecause tempwarm 29-32 °C (85-90 °F) / cool 21-27 °C (70-80 °F) / night Down to ~24 °C
A way to check the night figurebecause tempwarm 29-32 °C (85-90 °F) / cool 21-27 °C (70-80 °F) / night Down to ~24 °C
A hygrometerbecause humidity40–60% (dry cage; mist for shed)
UVB, stated as beneficial rather than requiredbecause uvbBeneficial (diurnal)

Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation.

  • Enclosure 120×60×60
  • Heat + thermostat
  • Low UVB
  • Aspen substrate
  • 2 hides
  • Water bowl
  • F/T mice

Sources

Others in this group

What this sheet states

100%
TemperatureHumidityEnclosure sizeActivityOriginDietSourcesUVB

Every field this product runs on is stated here. That is not a claim that the values are right: it says what the sheet states, not whether it is true. Whether a human has read it is the badge at the top of this page.

UVB is measured but does not count: it is absent from 421 of 678 sheets, and on most of them that is not a gap, since a nocturnal snake's sheet has no reason to state a UV index. Counting it would call the library incomplete without cause.