Pygmy Python (Antaresia perthensis) Care Sheet
The Pygmy Python is the smallest recognised python species in the world. Native to northwestern Australia, this diminutive member of the genus Antaresia is considerably smaller than its relatives, the Children’s, Stimson’s and Spotted Pythons.
Despite its tiny adult size, the Pygmy Python should not be regarded as requiring minimal husbandry. It is an active, secretive snake that benefits from secure retreats, climbing opportunities, rocky structure, a well-defined thermal gradient and environmental enrichment.
Captive-bred individuals can be fascinating snakes to maintain, although their small size, relative rarity and potentially challenging hatchling feeding make them better suited to keepers with some previous snake husbandry experience.
Quick Facts
Scientific name: Antaresia perthensis
Common names: Pygmy Python / Anthill Python
Family: Pythonidae
Origin: Northwestern Australia
Adult size: Commonly approximately 45–60 cm (18–24 in)
Lifespan: Approximately 15–20+ years with appropriate care
Activity: Primarily crepuscular and nocturnal
Lifestyle: Terrestrial, with some climbing ability
Diet: Carnivorous
Reproduction: Egg-laying
Temperament: Generally manageable; juveniles may be defensive
Experience level: Intermediate
Taxonomy
The Pygmy Python is classified as:
Antaresia perthensis
It belongs to the genus Antaresia, which also includes:
- Children’s Python (Antaresia childreni)
- Stimson’s Python (Antaresia stimsoni)
- Spotted Python (Antaresia maculosa)
The Pygmy Python is the smallest member of this group and the smallest recognised python species.
Distribution
Pygmy Pythons are native to northwestern Australia, particularly the Pilbara region of Western Australia.
Their natural range experiences:
- High daytime temperatures
- Cooler nighttime conditions
- Strong seasonal variation
- Relatively dry conditions
- Periodic rainfall
Captive husbandry should provide environmental choice rather than attempting to maintain one uniform temperature or humidity throughout the enclosure.
Natural Habitat
The species inhabits environments including:
- Rocky hills
- Rocky outcrops
- Spinifex grassland
- Dry scrub
- Termite-mound environments
Pygmy Pythons utilise:
- Rock crevices
- Cracks
- Burrows
- Termite mounds
- Other sheltered retreats
These refuges provide protection from extreme surface temperatures and predators.
Anthill Python
The alternative common name Anthill Python reflects the species’ association with termite mounds.
Termite mounds can provide relatively stable microclimates compared with exposed surrounding environments.
This illustrates an important aspect of captive husbandry: a species originating from a hot, dry region should still be provided with secure retreats and access to different microclimates.
Appearance
Pygmy Pythons are small, relatively slender snakes.
Typical colouration includes combinations of:
- Reddish-brown
- Brick red
- Brown
- Tan
- Cream
The body usually displays darker irregular markings over a lighter background.
Colour and pattern can vary between individuals.
Adult Size
Adults commonly reach approximately:
45–60 cm (18–24 in)
although individual size varies.
Females generally become somewhat larger and heavier than males.
Their exceptionally small adult size makes enclosure security particularly important because even mature animals can exploit surprisingly small openings.
Enclosure
For an average adult, approximately:
60 × 45 × 45 cm (2 × 1.5 × 1.5 ft)
provides a useful minimum starting point.
Larger accommodation can be used where sufficient environmental cover is provided.
The enclosure should include:
- Multiple secure hides
- Rocky structures
- Climbing opportunities
- Appropriate substrate
- Fresh water
- Thermal gradient
- Environmental enrichment
Small body size should not be used as justification for barren accommodation.
Juvenile Enclosures
Hatchlings are extremely small.
They require particularly secure accommodation with:
- Tiny appropriately sized hides
- Warm and cool retreats
- Environmental cover
- Small climbing structures
- Fresh water
- Appropriate substrate
- Thermal gradient
Large exposed spaces can increase stress.
Enclosure size can be increased progressively as the snake grows.
Enclosure Security
Pygmy Pythons are extremely capable escape artists.
Pay particular attention to:
- Door gaps
- Sliding-glass overlaps
- Ventilation holes
- Cable openings
- Lid edges
- Locking mechanisms
An opening that appears insignificant may be large enough for a hatchling or even an adult to escape through.
All openings should be checked before introducing the snake.
Hides
Provide at least:
- One warm-side hide
- One cool-side hide
Additional retreats are strongly encouraged.
Suitable options include:
- Small cork pieces
- Artificial rock crevices
- Purpose-built hide boxes
- Cork tubes
- Secure rocky structures
Hides should be appropriately sized so the snake can feel enclosed.
Rocky Structures
Rocky environments form an important component of the species’ natural habitat.
Captive enclosures can incorporate secure artificial rock structures providing:
- Crevices
- Basking areas
- Elevated positions
- Sheltered retreats
- Different thermal zones
Heavy structures must be securely supported.
Never position loose rocks where movement or burrowing could cause them to collapse onto the snake.
Climbing Opportunities
Although primarily terrestrial, Pygmy Pythons can climb and explore elevated structures.
Provide:
- Small branches
- Cork tubes
- Logs
- Rock ledges
All structures should be securely anchored.
Substrate
Suitable substrates include:
- Reptile-safe soil mixtures
- Sandy-soil mixtures designed for reptiles
- Suitable low-dust naturalistic substrates
- Paper-based substrate during quarantine where appropriate
Naturalistic environments can incorporate:
- Leaf litter
- Small rocks
- Cork
- Different substrate depths
Avoid:
- Cedar
- Pine
- Artificially scented substrates
- Excessively dusty materials
- Pure loose sand as the sole substrate
Temperature & Heating
Provide a clear thermal gradient.
Suitable general temperatures are approximately:
Basking surface: 32–35°C
Warm ambient area: approximately 27–30°C
Cooler area: approximately 22–25°C
Night: approximately 20–23°C
The snake must always be able to retreat completely from the heated area.
The entire enclosure should never be maintained at basking temperature.
Basking
Provide a defined basking area.
Rock or slate-style surfaces can provide useful basking opportunities when safely installed.
Surface temperature should be measured using an infrared thermometer.
Because Pygmy Pythons are very small, care must be taken to avoid creating an excessively large heated area that prevents effective thermoregulation.
Heating
Suitable heating systems may include appropriately installed:
- Halogen basking lamps
- Deep heat projectors
- Ceramic heat emitters
The heating system should establish a useful thermal gradient.
All heating equipment must be appropriately thermostatically controlled.
Any internally mounted heat source accessible to the snake must be securely guarded.
Night-Time Temperatures
Pygmy Pythons naturally experience nighttime cooling.
A moderate nighttime temperature reduction can therefore be provided.
Night temperatures of approximately:
20–23°C
are generally appropriate for healthy established animals.
Extremely cold conditions should be avoided.
Humidity
Pygmy Pythons originate from relatively dry environments.
A useful general humidity range is approximately:
40–60% relative humidity
with natural fluctuations.
Humidity may temporarily increase during:
- Shedding
- Misting of a humid retreat
- Seasonal changes
The entire enclosure should not remain permanently damp.
Humid Retreat
Provide access to a localised humid retreat, particularly during shedding.
Suitable materials include:
- Damp sphagnum moss
- Moist coconut fibre
- Other moisture-retaining reptile-safe substrate
The contents should remain damp rather than saturated.
This allows the snake to select increased humidity without requiring high humidity throughout the enclosure.
Ventilation
Good ventilation is important.
The enclosure should provide:
- Fresh air exchange
- Surface drying
- Natural humidity fluctuations
Persistently damp conditions can contribute to:
- Scale problems
- Bacterial growth
- Fungal growth
- Respiratory disease
Water
Fresh drinking water should be available at all times.
Provide a small, stable water bowl.
The bowl should be shallow enough that a tiny juvenile can enter and exit easily.
Water should be:
- Checked daily
- Changed regularly
- Replaced immediately when contaminated
Originating from an arid environment does not mean the species should have restricted access to drinking water.
Lighting
Provide a clear day/night cycle.
Approximately:
10–12 hours of light per day
is suitable, with seasonal variation possible.
Bright daytime illumination helps establish a clear photoperiod and supports natural basking behaviour.
The enclosure should become genuinely dark at night.
Avoid coloured nighttime bulbs.
UVB
Low-level UVB can be incorporated into modern Pygmy Python husbandry.
A useful exposed basking target may be approximately:
UVI 1–2
with shaded retreats providing negligible exposure.
The snake must always be able to regulate its own exposure.
Actual UV intensity depends upon:
- Lamp output
- Reflector
- Distance
- Mesh
- Basking position
Environmental Enrichment
Pygmy Pythons benefit from environmental complexity despite their small size.
Suitable enrichment includes:
- Rock structures
- Small branches
- Cork tubes
- Multiple hides
- Different substrate depths
- Leaf litter
- Artificial vegetation
- Scent trails
- Elevated resting positions
The enclosure should encourage:
- Exploration
- Climbing
- Basking
- Concealment
- Foraging
- Thermoregulation
Diet
Pygmy Pythons are carnivorous constrictors.
Their natural diet can include:
- Small lizards
- Geckos
- Small mammals
- Other appropriately sized vertebrates
Juveniles naturally encounter extremely small prey, which can be relevant when establishing newly hatched animals in captivity.
Captive Diet
Established captive-bred animals can generally be maintained on appropriately sized whole rodents.
Very young snakes may require exceptionally small prey.
Prey size should always be appropriate to the snake’s:
- Head size
- Body size
- Age
- Body condition
Frozen-Thawed Prey
Appropriately prepared frozen-thawed prey is strongly preferred once the snake is feeding reliably on suitable rodent prey.
Frozen prey should be:
- Completely thawed
- Appropriately warmed
- Presented using feeding tongs
Never microwave whole frozen prey because uneven heating can create dangerous internal hot spots.
Hatchling Feeding
Hatchling Pygmy Pythons can be more challenging to establish than many larger Antaresia species.
Their extremely small size means suitable prey must be selected carefully.
Some individuals may initially show stronger interest in prey resembling their natural juvenile diet.
Persistent feeding problems should be approached patiently rather than repeatedly disturbing or force-feeding the animal.
Before assuming a feeding problem, review:
- Temperature
- Hiding opportunities
- Enclosure security
- Hydration
- Disturbance
- Prey size
- General health
Assisted feeding should only be undertaken when genuinely necessary and preferably under experienced or veterinary guidance.
Prey Size
Offer appropriately sized prey that produces a modest visible swelling.
Extremely large meals are unnecessary.
Because Pygmy Pythons have a very small body diameter, careful prey selection is particularly important.
Feeding Frequency
Hatchlings and young juveniles may generally be offered appropriately sized prey approximately:
Every 5–7 days
depending upon feeding history, growth and body condition.
Subadults may generally be fed approximately:
Every 7–10 days.
Healthy adults may generally be fed approximately:
Every 10–14 days
depending upon:
- Prey size
- Body condition
- Activity
- Age
- Season
- Reproductive status
Feeding frequency should always be adjusted according to the individual animal.
Avoid Overfeeding
Pygmy Pythons should not be power-fed.
Excessive feeding can contribute to:
- Obesity
- Excessively rapid growth
- Reduced activity
- Poor body condition
A healthy animal should remain muscular and well proportioned.
Temperament
Captive-bred Pygmy Pythons are generally manageable.
Hatchlings may initially be:
- Defensive
- Shy
- Easily startled
Their defensive strikes are often associated with insecurity rather than persistent aggressive behaviour.
Providing abundant cover and predictable husbandry can help reduce stress.
Handling
Because Pygmy Pythons are extremely small, handling should be particularly gentle.
When handling:
- Move slowly
- Support the body
- Avoid grabbing the head
- Avoid tight restraint
- Allow controlled movement
- Keep sessions relatively short
Small snakes can be injured by excessive restraint.
Handling should not replace appropriate enclosure-based enrichment.
Handling After Feeding
Avoid unnecessary handling for approximately:
48 hours after feeding
and longer following substantial meals.
Allow digestion to occur undisturbed at appropriate temperatures.
Shedding
Signs of an approaching shed include:
- Dull colouration
- Cloudy or blue eyes
- Reduced activity
- Possible temporary feeding refusal
Appropriate hydration and access to a humid retreat generally support complete shedding.
After shedding, check:
- Eye caps
- Tail tip
- Overall skin
The tiny tail tip should be checked particularly carefully.
Repeated incomplete sheds indicate that hydration, humidity or general health should be reviewed.
Housing Multiple Snakes
Individual housing is generally recommended.
Pygmy Pythons do not require companionship.
Separate housing allows accurate monitoring of:
- Feeding
- Faeces
- Shedding
- Body condition
- Behaviour
- Health
This is particularly important for tiny juveniles where individual feeding records are valuable.
Animals should normally only be introduced for controlled breeding.
Health
Potential health concerns include:
- Respiratory infections
- Mouth infections
- Burns
- Dehydration
- Retained shed
- External parasites
- Internal parasites
- Regurgitation
- Obesity
- Reproductive complications
Warning signs include:
- Significant unexplained weight loss
- Persistent feeding refusal accompanied by declining condition
- Repeated regurgitation
- Wheezing
- Nasal discharge
- Excessive saliva
- Open-mouth breathing
- Mouth swelling
- Neurological abnormalities
- Significant behavioural changes
Persistent or serious symptoms require assessment by a suitably experienced reptile/exotic veterinarian.
Dehydration
Despite originating from a dry environment, Pygmy Pythons require continuous access to fresh water and suitable humid microclimates.
Possible signs of hydration problems include:
- Poor shedding
- Sunken appearance around the eyes
- Reduced skin elasticity
- Unusual lethargy
Environmental humidity should not be increased indiscriminately without also considering ventilation.
Burns
The species’ small size and climbing ability can allow access to poorly protected heating equipment.
Prevent thermal injury by:
- Thermostatically controlling heat sources
- Guarding internally mounted equipment
- Measuring basking surfaces
- Regularly checking fixtures
Suspected burns require prompt veterinary attention.
Quarantine
All newly acquired Pygmy Pythons should undergo strict quarantine away from established reptiles.
During quarantine:
- Record body weight
- Monitor feeding
- Examine faeces
- Check skin
- Monitor breathing
- Check carefully for mites
- Observe behaviour
- Maintain separate equipment
Because these snakes are extremely small, even relatively minor weight loss can be significant.
Accurate weight records are particularly valuable.
Captive-Bred Animals
Captive-bred animals should be strongly preferred.
Before acquisition, establish where possible:
- Captive-bred status
- Hatch date
- Feeding history
- Current prey type
- Health history
- Sex
- Parentage
- Locality or lineage where relevant
For young animals, confirming that the snake is feeding reliably before purchase is particularly important.
Sexing
Pygmy Pythons can be sexed using established professional snake-sexing techniques.
Their extremely small size means considerable care is required.
These procedures should only be performed by an experienced person.
Incorrect probing can cause serious injury.
External appearance alone should not be relied upon for definitive sex determination.
Breeding
Pygmy Pythons are egg-laying snakes.
Breeding should only be attempted with healthy mature animals in appropriate body condition.
Successful breeding requires knowledge of:
- Accurate sexing
- Sexual maturity
- Seasonal cycling
- Pair introduction
- Courtship
- Female condition
- Ovulation
- Egg development
- Egg laying
- Incubation
- Hatchling husbandry
The extremely small size of hatchlings should be considered before breeding is attempted.
Breeding Condition
Females should be physically mature and in excellent condition before breeding.
They should not be:
- Undersized
- Underweight
- Obese
- Unhealthy
Age, physical development and body condition are more meaningful than reaching an arbitrary body weight.
Seasonal Cycling
Captive breeding programmes may incorporate controlled seasonal environmental changes.
These can include gradual alterations to:
- Nighttime temperatures
- Photoperiod
- Feeding
Only healthy mature animals should undergo deliberate cycling.
Environmental changes should occur gradually.
Pair Introduction
Adults should normally be maintained individually and introduced specifically for breeding.
Monitor introductions for:
- Courtship
- Copulation
- Stress
- Defensive behaviour
Animals should be separated if persistent stress occurs.
Accurate breeding records should be maintained.
Egg Laying
A gravid female requires access to a secure nesting area.
The laying site should provide:
- Privacy
- Appropriate moisture
- Stable conditions
- Sufficient space
Females should be monitored carefully during the reproductive period.
Difficulty laying eggs can become a veterinary emergency.
Artificial Incubation
Eggs require carefully controlled:
- Temperature
- Moisture
- Gas exchange
Because the eggs are relatively small, maintaining stable incubation conditions is particularly important.
Eggs should not be unnecessarily rotated after development has begun.
Current species-specific breeding information should be consulted before attempting incubation.
Hatchlings
Pygmy Python hatchlings are exceptionally small.
They should generally be housed individually in extremely secure accommodation.
Provide:
- Tiny secure retreats
- Warm and cool areas
- Fresh water
- Appropriate humidity
- Suitable substrate
- Environmental cover
Each hatchling should be monitored individually for:
- First shed
- Feeding
- Body weight
- Defecation
- Hydration
- Normal development
Accurate feeding and weight records are particularly valuable.
Pygmy Python vs Other Antaresia
The four commonly recognised Antaresia species are:
Pygmy Python — Antaresia perthensis
Stimson’s Python — Antaresia stimsoni
Children’s Python — Antaresia childreni
Spotted Python — Antaresia maculosa
The Pygmy Python is substantially smaller than the other members of the genus.
Accurate species identification and lineage records should be maintained for captive breeding animals.
Responsible Sourcing
Before acquiring a Pygmy Python, establish where possible:
- Captive-bred status
- Age
- Sex
- Feeding history
- Current prey size
- Health history
- Parentage
- Locality or lineage where relevant
A young animal should ideally already be feeding reliably before transfer to a new keeper.
Legal Considerations
Wildlife legislation varies between countries and can change.
Before acquiring, breeding, transporting, importing or exporting a Pygmy Python, keepers should confirm all current requirements applicable to their jurisdiction.
Australia maintains strict controls over the export of native wildlife, meaning captive populations outside Australia generally descend from established captive lines.
Responsible Ownership
Pygmy Pythons can live for 15–20 years or longer.
Before acquiring one, consider:
- Long-term enclosure requirements
- Exceptional enclosure security
- Whole-prey feeding
- Heating requirements
- Potential hatchling feeding challenges
- Specialist veterinary care
- Long lifespan
Their exceptionally small size makes them easier to accommodate than most pythons, but does not make them disposable or short-term pets.
Never release a captive snake into the wild.
Summary
The Pygmy Python is a remarkable Australian reptile and the smallest recognised python species in the world.
Successful husbandry depends upon providing exceptionally secure accommodation, numerous appropriately sized retreats, rocky structure, climbing opportunities, a well-defined thermal gradient, moderate humidity with access to a humid microclimate, fresh water and environmental enrichment.
Its small size creates some husbandry challenges of its own, particularly enclosure security and establishing very small hatchlings on suitable prey.
Captive-bred, established animals can make fascinating and manageable snakes for keepers prepared to meet their specific requirements.
With appropriate care, responsible sourcing and careful long-term management, Antaresia perthensis can thrive in captivity for many years.
IMPORTANT INFORMATION
This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.
If you have concerns about an animal’s health or care, consult a suitably experienced exotic or reptile veterinarian.
Information correct at the date of publication.
reptilecommunity.com | Revised: August 2026