Solomon Island Ground Boa (Candoia paulsoni) Care Sheet
The Solomon Island Ground Boa is a distinctive, heavy-bodied boa native to islands of the southwest Pacific. It belongs to the genus Candoia, a group commonly known as Pacific boas.
Unlike many better-known boas, Candoia paulsoni is relatively compact, predominantly terrestrial and often characterised by a broad, angular head and strongly built body. Considerable variation exists between populations, with differences in size, colouration and pattern.
Although generally manageable once established, Solomon Island Ground Boas can be shy or defensive and have relatively slow metabolisms. Successful husbandry requires appropriate floor space, moderate tropical temperatures, good humidity without stagnant conditions, secure hiding places and careful feeding to prevent obesity.
Quick Facts
Scientific name: Candoia paulsoni
Common name: Solomon Island Ground Boa / Pacific Ground Boa
Family: Boidae
Origin: Solomon Islands and surrounding Pacific islands, depending on subspecies/population
Adult size: Commonly approximately 90–150 cm (3–5 ft), with females generally larger than males
Lifespan: Approximately 15–20+ years with appropriate care
Activity: Primarily nocturnal/crepuscular
Lifestyle: Predominantly terrestrial
Diet: Carnivorous
Temperament: Variable; often shy or defensive when young
Experience level: Intermediate
Natural History
Solomon Island Ground Boas occur across islands within the southwest Pacific.
They inhabit warm tropical environments including:
- Forest
- Forest margins
- Leaf litter
- Scrub
- Agricultural areas
- Vegetated ground cover
They are primarily terrestrial but are capable of climbing low vegetation and other structures.
During daylight hours they commonly remain concealed beneath vegetation, leaf litter or other cover.
Activity generally increases during the evening and night.
Their natural diet can include small mammals, lizards, frogs and birds depending upon locality and prey availability.
Geographic Variation
Candoia paulsoni occurs as a number of geographically distinct populations and recognised subspecies.
These populations can differ significantly in:
- Adult size
- Body proportions
- Colour
- Pattern
- Natural habitat
For this reason, locality and subspecies information should be retained whenever known.
Animals from different recognised localities should not be mixed indiscriminately in breeding programmes.
Accurate record keeping helps preserve the diversity already established within captive populations.
Enclosure
Solomon Island Ground Boas require substantial usable floor space.
For an average adult, approximately:
120 × 60 × 60 cm (48 × 24 × 24 in)
provides a practical minimum starting point.
Large females and larger geographical forms should be provided with more space.
The enclosure should ideally allow the snake to stretch out fully.
Provide:
- Warm hide
- Cool hide
- Additional cover
- Deep substrate
- Cork bark
- Low branches
- Plants
- Leaf litter
- Fresh water
Although predominantly terrestrial, low climbing opportunities provide valuable environmental enrichment.
Enclosure Security
Solomon Island Ground Boas are strong snakes and the enclosure must be completely secure.
Check:
- Doors
- Locks
- Ventilation
- Cable openings
- Sliding-door gaps
- Lamp fittings
Any internally mounted heating equipment must be protected by secure guards.
Heavy furnishings should be securely positioned so they cannot move or collapse if the snake pushes underneath them.
Housing
Solomon Island Ground Boas should generally be housed individually.
Permanent cohabitation provides no necessary social benefit and can introduce risks including:
- Feeding accidents
- Competition for hides
- Competition for preferred temperatures
- Stress
- Unwanted breeding
- Difficulty monitoring individual animals
Animals intended for breeding should only be introduced deliberately and monitored appropriately.
Temperature & Heating
Solomon Island Ground Boas require warm tropical conditions without excessive heat.
Suitable temperatures are approximately:
Basking surface: 30–32°C
Warm hide: approximately 27–29°C
Cool end: approximately 23–25°C
Night: approximately 21–24°C
A thermal gradient is essential.
The entire enclosure should never be maintained at basking temperature.
Overhead heating is generally recommended.
Suitable heat sources can include:
- Halogen basking lamps
- Deep heat projectors
- Ceramic heat emitters where appropriate
All heat sources must be controlled by a suitable thermostat.
Internally mounted heaters must be protected by secure guards.
Temperatures should be monitored using reliable digital thermometers.
Lighting & UVB
Provide approximately:
10–12 hours of light per day
to establish a clear day/night cycle.
Although Solomon Island Ground Boas have historically been maintained without UVB, providing access to low-level UVB is recommended where practical.
Aim for approximately:
UVI 1–2 in the exposed warm area
with shaded retreats where UV exposure approaches zero.
A linear UVB lamp can create an appropriate gradient.
Actual UV exposure depends upon:
- Lamp output
- Reflector
- Mesh
- Distance
- Enclosure furnishings
Follow manufacturer recommendations and ideally verify exposure using an appropriate UV meter.
The enclosure should become dark at night.
Avoid red, blue or other coloured nighttime bulbs.
Humidity
Solomon Island Ground Boas originate from tropical environments and require moderate to relatively high humidity.
A useful general range is approximately:
60–80% relative humidity
with natural daily fluctuations.
Humidity can rise following misting before gradually declining.
A humid hide can be particularly useful during shedding.
The enclosure should not remain permanently saturated.
High humidity must be combined with good ventilation.
Constantly wet substrate and stagnant air can contribute to:
- Scale infections
- Respiratory disease
- Bacterial growth
- Fungal growth
Misting
Periodic misting can help maintain appropriate humidity.
Evening misting is particularly suitable because it coincides with the snake becoming more active.
Allow some surfaces to partially dry between misting periods.
Automatic misting systems can be used but should not keep the enclosure continuously wet.
The objective is a humid tropical environment with good airflow rather than permanently saturated conditions.
Water
Fresh drinking water must be available at all times.
Provide a stable water bowl large enough for comfortable drinking and soaking if desired.
Water should be:
- Changed regularly
- Replaced immediately when contaminated
- Provided in a clean container
Persistent soaking may occasionally indicate:
- Mites
- Excessive temperatures
- Dehydration
- Other husbandry problems
and should be investigated if unusual for the individual.
Substrate
Suitable substrates include:
- Reptile-safe soil mixtures
- Coconut fibre
- Coconut husk
- Orchid bark
- Cypress-type mulch
- Naturalistic tropical substrate mixtures
Leaf litter provides useful additional cover and enrichment.
A reasonably deep substrate allows the snake to push beneath surface material and explore.
Good drainage is important in humid setups.
Avoid:
- Cedar
- Pine
- Calcium sand
- Sharp gravel
- Artificially scented substrates
Paper-based substrate can be useful during quarantine or medical monitoring.
Hides
At least two secure hides should be provided:
- One at the warm end
- One at the cool end
Additional retreats are strongly recommended.
Suitable options include:
- Cork bark
- Commercial reptile caves
- Hollow logs
- Purpose-built hide boxes
- Dense vegetation
The snake should be able to select different temperatures without sacrificing security.
A hide should be enclosed enough to allow the animal to feel protected.
Furnishing & Enrichment
Solomon Island Ground Boas benefit from a complex terrestrial environment.
Suitable enrichment includes:
- Cork bark
- Leaf litter
- Low branches
- Plants
- Different substrate depths
- Textured surfaces
- Visual barriers
- Multiple hiding locations
Although they are often described as ground-dwelling boas, they can make use of low climbing structures.
Branches should be securely anchored and capable of supporting the snake.
Diet
Solomon Island Ground Boas are carnivorous.
Captive adults can generally be maintained primarily on appropriately sized rodents.
Suitable prey can include:
- Mice
- Rats of appropriate size
- Other appropriately sourced whole vertebrate prey where suitable
Frozen-thawed prey is generally recommended.
Prey should be selected according to the individual snake’s size and body condition.
These boas do not require exceptionally large meals.
Feeding Frequency
Candoia generally have relatively slow metabolisms.
Healthy adults can commonly be offered an appropriately sized meal approximately every:
14–21 days
depending upon:
- Prey size
- Body condition
- Activity
- Age
- Reproductive status
Juveniles require smaller meals somewhat more frequently.
Feeding schedules should be adjusted to the individual rather than based purely upon appetite.
Avoid Overfeeding
Obesity can become a significant problem in captive Solomon Island Ground Boas.
Their naturally heavy build can make excessive weight difficult to recognise.
A healthy snake should remain muscular rather than becoming excessively rounded.
Chronic overfeeding can contribute to:
- Obesity
- Reduced activity
- Fatty liver disease
- Reproductive complications
- Reduced longevity
Regular weighing and photographs from above can help monitor body condition.
Feeding Safety
Use feeding tongs when presenting prey.
There is generally no need to move the snake into a separate enclosure for feeding.
Avoid placing hands carrying rodent scent near an alert snake.
After a substantial meal, routine handling should be avoided until digestion is well underway.
Some individuals can develop a strong feeding response, particularly when enclosure doors are opened.
Handling
Temperament varies considerably between individuals.
Some captive-bred Solomon Island Ground Boas become calm and tolerant of sensible handling.
Others remain shy or defensive.
When handling:
- Support the entire body
- Allow the snake to move naturally
- Avoid tight restraint
- Keep sessions brief initially
- Avoid approaching rapidly from above
- Avoid handling immediately after feeding
- Avoid unnecessary handling during shedding
Defensive behaviour should not be punished or deliberately provoked.
Defensive Behaviour
When threatened, a Solomon Island Ground Boa may:
- Coil tightly
- Assume a strike position
- Hiss
- Strike
- Attempt to retreat
Young or newly acquired animals can be particularly defensive.
Providing abundant cover and allowing the animal time to become established often reduces defensive behaviour.
A defensive response should be viewed as communication rather than aggression.
Shedding
Before shedding, the snake may:
- Become duller
- Develop cloudy eyes
- Spend more time hidden
- Reduce activity
- Refuse food
Healthy animals should normally shed in one complete piece.
Provide:
- Fresh water
- Correct environmental humidity
- Humid hide
- Textured surfaces such as cork bark
Repeated incomplete sheds can indicate inadequate hydration, inappropriate humidity or illness.
Retained spectacles and stubborn retained skin should not be forcibly removed from a dry animal.
Health
Potential health concerns include:
- Obesity
- Respiratory infections
- Mites
- Internal parasites
- Scale infections
- Mouth infections
- Retained shed
- Burns
- Regurgitation
- Reproductive complications
Warning signs include:
- Persistent weight loss
- Repeated regurgitation
- Wheezing
- Open-mouth breathing
- Excessive mucus
- Bubbles around the mouth or nostrils
- Abnormal swelling
- Persistent abnormal faeces
- Neurological abnormalities
- Significant behavioural changes
Persistent or serious symptoms require assessment by a suitably experienced reptile/exotic veterinarian.
Quarantine
Every newly acquired snake should ideally undergo quarantine away from established reptiles.
During quarantine:
- Record body weight
- Monitor feeding
- Check carefully for mites
- Observe faeces
- Monitor breathing
- Use easily cleaned furnishings
- Maintain separate equipment where practical
Veterinary faecal testing may be appropriate, particularly for animals with uncertain histories.
Wild-caught specimens can carry significant parasite burdens and should be avoided where captive-bred animals are available.
Breeding
Solomon Island Ground Boas are live-bearing.
Females give birth to fully formed young rather than laying eggs.
Only healthy, mature animals in appropriate body condition should be bred.
Breeding requires an understanding of:
- Sexing
- Sexual maturity
- Seasonal cycling
- Pairing
- Courtship
- Ovulation
- Gestation
- Female body condition
- Neonatal husbandry
Males and females do not need to remain housed together permanently.
Where locality or subspecies information is known, accurate breeding records should be maintained.
Neonates
Newborn Solomon Island Ground Boas can be relatively small and may require patience when establishing feeding.
Provide:
- Secure accommodation
- Appropriately sized hides
- Correct thermal gradient
- Fresh water
- Appropriate humidity
- Suitable small prey
Some neonates may initially prefer prey cues associated with their natural diet and can prove more difficult to establish on rodents than many commonly kept boas.
Otherwise healthy neonates should be monitored carefully rather than subjected immediately to repeated stressful feeding attempts.
Regular weighing is particularly useful.
Conservation & Responsible Sourcing
Pacific island reptiles can be vulnerable to habitat loss, restricted distributions and collection.
Captive-bred Solomon Island Ground Boas should therefore be strongly preferred.
Where an animal has reliable locality information, this should be retained throughout its life and passed to future keepers or breeders.
Responsible captive breeding should prioritise:
- Accurate identification
- Known lineage
- Genetic diversity
- Preservation of locality information
- Avoidance of unnecessary hybridisation
Responsible Ownership
Solomon Island Ground Boas can live for 15–20 years or longer.
Before acquiring one, prospective keepers should consider:
- Adult enclosure size
- Heating and humidity requirements
- Food costs
- Veterinary care
- Long-term commitment
- Potential defensive behaviour
They are particularly rewarding for keepers interested in less commonly maintained boa species and naturalistic husbandry.
Captive-bred animals from reliable sources should be preferred wherever possible.
Never release a captive snake into the wild.
Summary
The Solomon Island Ground Boa is a distinctive Pacific boa whose compact build, geographic variation and terrestrial behaviour make it very different from many better-known boa species.
Successful husbandry depends upon providing a secure and spacious terrestrial enclosure, controlled tropical temperatures, moderate-to-high humidity with good ventilation, multiple secure retreats, environmental enrichment and appropriately sized whole prey without overfeeding.
Their relatively slow metabolism makes careful body-condition management particularly important.
With appropriate husbandry, Candoia paulsoni can be a fascinating and rewarding long-term captive snake.
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