ReptiFlow

Care sheets

Snakes

Children’s python

Antaresia childreni

Photo: Childrens Python (Antaresia childreni) (8692421368) · Matt from Melbourne, Australia · CC BY 2.0 · Changes and credits

These guides provide general husbandry information and do not replace veterinary assessment. If your animal shows symptoms or its condition worsens, contact a veterinarian experienced with exotic animals.

Care sheet sourcesReptile One — Antaresia childreniAnAge — Antaresia childreni: captive longevityThe Reptile Database — Antaresia childreni: taxonomy, distribution and scientific bibliographyEsquerré et al. (2021) — Phylogeography, historical demography and systematics of AntaresiaNSW Department of Education (2026) — Antaresia childreni: enclosure temperature gradientMerck Veterinary Manual · Vitamin D and ultraviolet lightReptiles Magazine — Antaresia pythonsMerck Veterinary Manual — Reproductive diseases of reptilesBaines et al. 2016 · UV-Tool, species tableBaines 2024 · UVB lighting for reptilesArcadia · Low UV species, local basking UVICDC — Reptiles and Amphibians: hygiene and cross-contaminationMerck Veterinary Manual — Management and Husbandry of Reptiles: quarantineAZA — Amphibian Husbandry Resource Guide: quarantine
Temperatures
Warm zone
36 °C · basking area
Cool zone
22 °C · cool end
Recommended enclosureLength ≥ snake; 120.2 × 60.2 × 60.2 cm adult reference, conservative editorial choiceLength × depth × height
HumidityVentilation, water and humid retreat; no single percentage is established
Adult sizeAbout 100.1 cm

Description

Antaresia childreni is a small python from northern Australia. Its slender body has blotches that are stronger in juveniles and often fade in adults. It inhabits rocky areas, open woodland and cavities, also exploring branches. It is mainly nocturnal and captures small vertebrates by constriction.

LifespanLongevity is still under observation: captive records reported by the source reach 25.7 years. The record is neither an average lifespan nor a maximum limit.

Behaviour

Response to contact varies: observe the individual’s stress signals.

Housing together

Keep one snake per enclosure, including individuals of the same species. Feed it in its own enclosure and record its individual meal. Bring adults together only for supervised breeding encounters with two functioning enclosures ready; separate them afterwards.

Enclosure and climate

Provide secure housing with hides in different thermal areas, stable branches and clean water. Record the python’s origin. Before arrival, test the gradient with air probes, measure surfaces separately and guard heat sources.

NSW Education specifies a 36 °C basking area and an opposite end at 22 °C. Switch daytime lamps off at night; a cold room needs thermostat-controlled heat without light. The Reptile One reference retains nights at ≥ 22 °C. The 36 °C value is not a target for all enclosure air.

Warm area, cool area and hides

If heating is specified, place it at one end and distribute hides between that area and the cool side. Choose openings and internal space suitable for the body; after adding bedding, check that entrances remain clear. Set the dish on a stable base and leave routes between retreats; use low supports only where suitable for the species.

Testing and access

Connect specified heat sources to compatible thermostats and guard against contact. Secure probes according to device instructions; measure air at resting sites and heated surfaces separately with independent instruments. In housing with water, also check water temperature and quality: one zone’s thermostat does not control the others.

With the complete enclosure running, record day and night readings and compare them with the sheet. Test doors, cable openings and cleaning access, keeping vents clear. Change one variable at a time and recheck after each adjustment.

Lighting and UVB

Zones 1–2: intermediate assignment between shade and occasional exposure.

At the exposed position aim for approximately UVI 2–3, measured at the back or head. The animal must choose its exposure and reach UVI 0 retreats. This local target differs from the Ferguson ecological band and should not be maintained everywhere throughout the day.

UVB is recommended at an intensity appropriate to the species, with the option to withdraw from the light. Evidence of its necessity varies between animals: assess exposure alongside diet and species identification.

UVA is recommended as part of daytime lighting, including when UVB has not been shown to be indispensable. Check the UVB source’s spectrum, as it may already emit UVA: a second lamp is not automatically necessary.

Linear UVB tube with reflector. Indicative UVB percentage stated on the lamp: 2–7%; final selection depends on UVI achieved at the actual distance.

For maintenance, a cycle of approximately 12 hours of light and 12 hours of darkness can serve as an initial reference. Use a timer to switch lights off at night, and keep retreats available so the animal can withdraw from light during the day. Adapt day length to species and origin, following the specific guidance for seasonal care and breeding.

Lamp-to-back distance: internal mounting and above meshInternal lampLamp above mesh30 cm40 cmd = source-to-back distance, not source-to-floor distance
Example with height 60 cm and animal height 25 cm. Not to scale: distances describe layout without guaranteeing UVI or a safe clearance for every lamp. Check the model used, mesh and all reachable points.

Light in the animal’s daily life

Provide climbing sites and retreats on both sides of the gradient. Measure above the coils on branches, accounting for the space between lamp and guard.

An example layout in the enclosure

To make the layout concrete, take housing measuring 120 × 60 × 60 cm, using the first dimensional configuration in the sheet. This is a mounting example: retain the conditions and any alternatives attached to the stated minimum.

In a wooden enclosure with internal lighting, imagine the tube 55 cm above the floor and the back or head at 25 cm. The geometric distance is therefore 30 cm. The branch or platform lies below animal height, according to body size. Place lighting over one side, with a route to fully screened retreats.

In a glass enclosure with a mesh roof, retain the same animal height and imagine the tube 5 cm above the mesh: distance becomes 40 cm. Mesh attenuates UV variably; ordinary glass roofs block UVB. Increasing the percentage alone is insufficient: measure beneath the mesh and adjust height, output or layout as needed.

These distances describe the example, not a safe clearance for every lamp. Select the source and adjust mounting until approximately UVI 2–3 is measured at animal height in the exposed position. Also respect the minimum clearance specified for the model used. Recheck with furnishings, guards and mesh installed, including the highest reachable points and animal growth.

Choosing and checking lighting

First define the patch that should illuminate the whole body and the route to a screened retreat. For a broad patch, select a linear tube with reflector; consider a compact only if its useful patch covers the body and leaves an accessible gradient. Check model, output, reflector and mounting distance, then compare measured UVI with the species target. Label UVB percentage alone cannot determine distance and intensity.

The decisive check uses a UVI meter facing the source at animal height. Check the centre and edges of the exposed patch, the highest supports and retreats, which must allow withdrawal from UV. Repeat after moving equipment, changing lamps and plant growth. Without a meter, use the manufacturer’s instructions and measurements for the exact configuration, including safety clearances.

When UVB or UVA are absent

When UVB is absent, an appropriate whole-prey diet can provide vitamin D3; do not automatically add supplements to prey. Dietary provision does not recreate every effect of light, so retain plans for controlled UVB exposure.

UVA contributes to environmental perception and behaviour and cannot be replaced by vitamins or calcium. A reptile UVB source normally also emits UVA: check its declared spectrum. If the existing lighting lacks it, complete the installation with a suitable source; an ordinary white LED does not guarantee UVA and a UVA-only lamp does not provide UVB.

Humidity and ventilation

Keep the substrate surface dry and place a humid hide on the cool side, particularly during shedding. Measure beside hides, outside the dish and away from the lamp; if bedding stays wet, remove contaminated material and check leaks and ventilation before adding water.

Feeding

The diet of Antaresia childreni is based on whole prey. Move from weekly juvenile feeding to more spaced meals as growth slows.

Recommended foods

The tiers describe dietary use: rotate foods within each tier rather than treating them as an absolute nutritional score.

FoodDietary roleBenefits and limitsPreparation
Whole captive-bred thawed rodentsMain choicesSkeleton, organs and muscle together supply nutrients absent from meat alone; select prey size according to swallowing ability and the portion specified for the species.Thaw completely in a refrigerator in a container separate from human food, then warm in a sealed bag in warm water. Do not microwave or refreeze.
Small whole captive-bred birdsFor rotationProvide nutritional variety relative to rodents, but species, size and energy content differ: do not replace one prey item with a much larger one.Thaw completely and replace a meal, rather than adding the bird to the normal ration. Use only when accepted and suited to mouth size.
Boneless meat and organs aloneAvoid / not a stapleDo not replace whole prey: muscle meat is calcium-poor and a liver-only diet can supply excessive vitamin A.Do not use steak, boneless chicken or processed meats as the regular diet.
Live rodentsAvoid / not a stapleLive prey can bite and seriously injure the reptile. Its movement does not improve the meal’s nutritional balance.For animals refusing thawed prey, assess temperature, health and presentation technique before changing prey.

Meals by age and size

Stage and sizeFrequencyAmount per meal
Neonates: after the first shed and establishment of feedingEvery 7 daysOne whole prey item per meal, with a diameter close to the snake’s widest body section and only a slight visible post-meal bulge. Increase prey size gradually; do not stack large prey items to accelerate growth.
Juveniles and subadults: until growth slowsEvery 7–10 daysOne whole prey item per meal, with a diameter close to the snake’s widest body section and only a slight visible post-meal bulge. Increase prey size gradually; do not stack large prey items to accelerate growth.
Adults: slowed growth, maintenanceEvery 10–14 days as a starting pointOne whole prey item per meal, with a diameter close to the snake’s widest body section and only a slight visible post-meal bulge. Increase prey size gradually; do not stack large prey items to accelerate growth.

Adjusting portions

Weigh before feeding and compare several measurements, not the weight immediately after a meal. Maintain defined muscle without fat folds; extend intervals if weight becomes excessive. Refusal with weight loss, regurgitation or breathing difficulty needs veterinary assessment.

Preparing and offering meals

Thaw completely in a refrigerator in a container separate from human food, then warm in a sealed bag in warm water. Do not microwave or refreeze.

Offer with tongs on a clean surface in its enclosure; avoid moving the snake for every meal. Remove refused prey. Leave undisturbed for at least 48 hours afterwards with continued access to the correct thermal gradient.

Calcium and vitamins

A diet of correctly raised, well-fed whole prey normally does not require calcium or multivitamins added to every meal. Do not inject prey with vitamins or try to compensate for a meat-only diet with improvised doses.

Daily care

First days

Record identity and origin and prepare separate housing. Before arrival, check closures, water and retreats. Offer the foods in the sheet and record intake, leftovers and weight. Follow a quiet maintenance routine and keep hides available, avoiding capture just to observe the animal.

Cleaning

Keep animals and equipment away from kitchens and food areas, use tools dedicated to each enclosure and wash your hands with soap and running water after handling animals, food, tank water or furnishings. Quarantine new arrivals separately and agree the duration and checks with a veterinarian before introducing them to established animals.

Handling

Support the body and limit contact after meals; stop when stress signals appear.

Checks

Weight loss, weakness, injuries or abnormal breathing warrant veterinary assessment.

Record appetite, droppings and environmental changes; a check is not an automatic treatment.

Breeding

Sex, maturity and readiness

Confirm A. childreni and wait for adult development: its small final size makes criteria from larger pythons inappropriate. Select regularly feeding females in good condition without enlarging them through oversized rodents.

Start a record for each breeding animal with identity, origin, documented age and previous weights. Compare the weight trend with growth and body condition; delay introductions for animals still growing rapidly, losing weight or recently acquired. Use stated ages as guidance alongside these checks. If sex cannot be identified reliably, obtain assessment by qualified personnel before pairing.

Preparation and seasonal cycle

Seasonality can be reproduced through gradual changes and restored warmth before introductions. Published Antaresia programmes are husbandry examples rather than temperatures to apply to young or sick animals; retain water and individual monitoring.

Before encounters, prepare and test offspring enclosures and have first foods available. Check records for regular adult feeding and good body condition, then verify access from exposed areas to retreats. If the species protocol includes seasonal changes, adjust settings gradually and record the response. Record night-time air, surface and egg temperatures separately, noting where each is measured. Keep water available throughout preparation.

Courtship and mating

Introduce only identified, compatible adults, with another enclosure ready. Observe from a distance and end the encounter if you observe persistent pursuit, injuries or an animal unable to move away from its partner; do not forcibly separate animals during copulation. Record the date, both identities and what you actually saw: courtship, contact or mating alone does not prove fertilisation.

Before laying and the nest

Prepare a compact sheltered nest that accommodates the female and clutch; 5–8 eggs are commonly described for this species. Observe laying from a distance and decide beforehand whether to transfer eggs or manage maternal brooding.

Maintain a suitable laying site even without a male: females can produce unfertilised eggs. Persistent straining without laying, weakness or tissue protruding from the vent require prompt veterinary assessment. Do not wait for a predicted laying date if these signs appear. Do not squeeze the abdomen, pull eggs or give drugs to induce laying without veterinary direction.

Egg incubation

Artificial incubation around 29–31 °C with development of 55–65 days is documented for Antaresia. Set a stable value, measure among the eggs and keep the medium damp without contact with free water. Do not force attached eggs apart.

Test the system before laying with an independent probe at egg height. Use clean, labelled containers, closed but allowing air exchange, with room for eggs and hatchlings. Keep eggs in their original orientation and do not detach eggs glued to their support. The substrate should retain moisture without free water on the shell; check condensation and water loss, adding water at the edge of the substrate rather than onto eggs. Record temperature and events daily without needless opening. The stated times are approximate: do not increase heat to meet a date.

First meals and juvenile care

Neonates are slender and need individual housing with secure closures. After the first shed offer the smallest suitable rodent; if a newborn mouse is too large, do not force swallowing. Check size-appropriate presentation with an experienced keeper.

During the first weeks, monitor each youngster: a feeding group does not guarantee that every individual eats. Record intake, droppings and weight at regular intervals to follow growth and adapt housing and food size. Provide separate accommodation if competition prevents an individual from feeding or size differences become marked. Document repeated independent meals before transfer to another keeper.

Female recovery

After reproduction provide water and the usual balanced diet, initially in manageable portions; monitor weight, activity and return of appetite. Keep supplements and lighting consistent with the feeding guide. Avoid further introductions until the previous condition has recovered; later clutches may occur without another mating. Persistent straining, weakness or protruding tissue require veterinary attention, without squeezing the abdomen.

Equipment and example diary

Place the nest where it can be checked without dismantling the enclosure. Label containers with female identity and laying date and prepare the specified medium; for attached eggs, instead provide guards in place without detaching them. If using an incubator, install a thermostat and independent probe and test it before laying. Run offspring enclosures too and prepare scales and first food, reserving capacity for later clutches.

A consistent diary using actual dates helps follow reproduction in Antaresia childreni. Start with adult identity, weight and condition, then record observed encounters, laying or birth and development conditions. After emergence record the first meal actually accepted and each youngster’s growth while continuing to follow female recovery. Over time these records help identify your lineage’s pattern without turning approximate durations into deadlines.