Standing’s Day Gecko (Phelsuma standingi) Care Sheet
Standing’s Day Gecko (Phelsuma standingi) is a large, impressive diurnal gecko endemic to south-western Madagascar.
It is one of the largest members of the genus Phelsuma. Unlike many of the brilliant green day geckos, Standing’s Day Geckos typically display more subdued but highly attractive combinations of grey, green, turquoise and blue, often with dark patterning across the head and body.
Juveniles can be considerably more brightly patterned than adults, with their appearance changing significantly as they mature.
Standing’s Day Geckos are strongly arboreal and spend much of their time climbing, basking, hunting insects and investigating their surroundings. Their large size and active nature mean they require considerably more space and more substantial climbing structures than smaller day gecko species.
They are strongly diurnal and require appropriate UVB, bright visible lighting and access to a localised basking area.
Like other Phelsuma, they possess delicate skin and should not be regarded as routine handling reptiles. Although captive-bred individuals may become confident around their keeper, unnecessary physical restraint should be avoided.
Successful husbandry centres on a large secure vertical enclosure, substantial climbing structure, appropriate UVB, bright visible lighting, a strong thermal gradient, moderate fluctuating humidity, excellent ventilation and a varied omnivorous diet.
Quick Facts
Scientific name: Phelsuma standingi
Common name: Standing’s Day Gecko
Family: Gekkonidae
Native range: South-western Madagascar
Lifestyle: Arboreal
Activity: Diurnal
Adult length: Approximately 8–11 inches including the tail
Lifespan: Approximately 15–20+ years with excellent care
Experience level: Intermediate
Diet: Omnivorous
Temperament: Alert, active and territorial
Adult enclosure: Approximately 24" × 24" × 36" minimum for one adult; larger strongly preferred
Basking area: Approximately 32–35°C
General daytime temperature: Approximately 24–28°C
Cool area: Approximately 21–24°C
Night temperature: Approximately 18–22°C
Humidity: Approximately 50–70% with regular drying periods
UVB: Essential
Handling: Minimal; not recommended routinely
Social housing: Individual housing safest
Natural Distribution
Phelsuma standingi is endemic to south-western Madagascar.
Its natural range is considerably drier than the tropical rainforest habitats associated with some other Phelsuma species.
The species occupies a relatively restricted geographical area.
Captive-bred animals should always be strongly preferred.
Natural Habitat
Standing’s Day Geckos inhabit warm, relatively dry woodland and scrub environments.
They are associated with:
- Trees
- Large shrubs
- Dry woodland
- Thorny vegetation
- Trunks
- Large branches
- Vegetated areas around settlements
Their natural environment experiences considerable sunlight and periods of relatively dry conditions.
Captive housing should therefore not be maintained permanently wet or excessively humid.
Appearance
Standing’s Day Geckos have a distinctive appearance compared with many other day geckos.
Adult colouration may include:
- Grey
- Green
- Blue-green
- Turquoise
- Brown
- Black
The head and body may display irregular darker markings.
Juvenile Colouration
Juveniles can look substantially different from adults.
Young animals frequently display:
- Stronger contrast
- Brighter blue or turquoise
- More obvious banding
- Distinctive head patterning
These markings gradually change as the gecko matures.
Adult Size
Adults generally reach approximately:
8–11 inches total length
including the tail.
This makes Phelsuma standingi one of the largest members of the genus.
Their size must be considered when designing permanent accommodation.
Lifespan
With excellent husbandry, Standing’s Day Geckos may live approximately:
15–20+ years
They represent a substantial long-term commitment.
Behaviour
Standing’s Day Geckos are strongly active during daylight.
Normal behaviour includes:
- Basking
- Climbing
- Hunting insects
- Exploring
- Territorial displays
- Feeding on nectar-like foods
- Drinking droplets
- Moving between warm exposed areas and shaded retreats
They are highly visual reptiles and quickly become aware of activity around their enclosure.
Temperament
Individual temperament varies.
Captive-bred animals can become relatively confident around their keeper and may readily approach feeding areas.
However, they remain fast and powerful climbers.
They should primarily be considered display reptiles.
Handling
Routine handling is not recommended.
If an animal must be moved, guiding it into a secure container is generally preferable to physically restraining it.
Never:
- Grab the tail
- Squeeze the body
- Restrain loose skin
- Chase the animal excessively
- Handle it in an unsecured room
Delicate Skin
Like other members of Phelsuma, Standing’s Day Geckos possess delicate skin.
Rough restraint can cause sections of skin to tear away.
Their larger size does not make their skin less vulnerable to damage.
Tail Loss
The tail can also be shed when the animal is severely stressed or improperly restrained.
Never lift or restrain the gecko by its tail.
A regenerated tail may differ noticeably from the original.
Enclosure Size
For a single adult:
24" × 24" × 36"
should be regarded as a practical minimum.
Larger accommodation is strongly preferred.
An enclosure around:
36" × 24" × 36"
or larger provides substantially greater opportunity for natural movement and environmental gradients.
Pair Accommodation
Where an experienced keeper maintains a compatible breeding pair, accommodation should be substantially larger than the minimum provided for one animal.
The enclosure should contain:
- Multiple basking positions
- Multiple feeding locations
- Extensive visual barriers
- Numerous retreats
- Multiple climbing routes
Separate accommodation must always be available.
Vertical Space
Standing’s Day Geckos are strongly arboreal.
The enclosure should provide usable climbing structure throughout its height.
A tall but sparsely furnished enclosure does not provide adequate arboreal habitat.
Climbing Structure
Because of their size, climbing structures must be substantial.
Suitable furnishings include:
- Thick natural branches
- Large bamboo
- Cork tubes
- Cork slabs
- Robust vines
- Live plants
Arrange climbing routes:
- Vertically
- Horizontally
- Diagonally
Branch Diameter
Provide several different branch diameters.
Large branches should be capable of supporting the animal comfortably while basking and moving around the enclosure.
All furnishings must be firmly secured.
Bamboo
Large-diameter bamboo is particularly useful.
It provides:
- Smooth climbing surfaces
- Basking sites
- Resting areas
- Elevated retreats
- Visual barriers
Secure all bamboo carefully.
Foliage
Provide areas of dense foliage while retaining open basking locations.
Foliage provides:
- Security
- Shade
- Drinking surfaces
- Visual barriers
- Climbing opportunities
Suitable reptile-safe plants may include robust:
- Pothos
- Ficus
- Schefflera
- Other appropriate plants
All plants should be free from pesticides and harmful chemicals.
Hides
Provide elevated retreats using:
- Cork tubes
- Hollow bamboo
- Dense vegetation
- Areas behind large branches
The gecko should always be able to move completely out of view.
Enclosure Security
Escape prevention is essential.
Standing’s Day Geckos are strong and capable climbers.
Check:
- Doors
- Locks
- Sliding tracks
- Ventilation
- Cable ports
- Lid fittings
before introducing the animal.
Substrate
Suitable substrates include:
- Organic topsoil
- Tropical soil mixtures
- Coco fibre mixed with soil
- Orchid bark
- Leaf litter
Avoid maintaining the substrate permanently saturated.
Bioactive Housing
Standing’s Day Geckos can be maintained successfully in well-designed bioactive enclosures.
A bioactive system may include:
- Live plants
- Natural soil
- Leaf litter
- Springtails
- Suitable isopods
Good drainage and ventilation remain essential.
Bioactive housing does not eliminate the need for routine maintenance.
Temperature Gradient
Provide a strong thermal gradient.
Standing’s Day Geckos should be able to move freely between warm basking areas and considerably cooler retreats.
Basking Temperature
Provide a localised basking surface around:
32–35°C
The basking area should occupy only part of the enclosure.
General Day Temperature
Most of the enclosure can remain around:
24–28°C
Cool Area
Provide cooler shaded areas around:
21–24°C
Night Temperature
Night temperatures can generally fall to approximately:
18–22°C
A noticeable nighttime reduction is appropriate.
Overheating
Do not maintain the entire enclosure at high temperatures.
Even a heat-tolerant basking species requires cooler areas for behavioural thermoregulation.
Particular care is required during hot weather.
Heating
Suitable overhead heating should be used to establish the basking zone.
Depending on enclosure size and room temperature, this may include an appropriate basking lamp.
All heating equipment should be safely installed and monitored.
Temperature Monitoring
Use reliable digital thermometers to monitor:
- Warm ambient areas
- Cool areas
An infrared thermometer is useful for checking basking surface temperatures.
UVB
UVB is essential.
Standing’s Day Geckos are strongly diurnal basking reptiles.
Appropriate UVB supports:
- Vitamin D3 synthesis
- Calcium metabolism
- Healthy skeletal development
- Normal muscular function
- Natural basking behaviour
UV Gradient
The enclosure should provide:
- Appropriate UV exposure around the primary basking area
- Moderate exposure
- Filtered exposure
- Complete shade
The gecko must be able to regulate its own exposure.
UVB Placement
UVB effectiveness depends on:
- Lamp output
- Distance
- Mesh obstruction
- Reflector
- Enclosure design
Follow current manufacturer recommendations when selecting and positioning UVB equipment.
Visible Lighting
Bright visible lighting is extremely important.
Standing’s Day Geckos naturally experience intense daytime illumination.
Good visible lighting supports:
- Natural activity
- Basking
- Feeding
- Colour display
- Plant growth
- Normal day/night rhythms
Suitable daylight LED lighting can be used alongside UVB and basking equipment.
Photoperiod
Approximately:
11–13 hours of daylight
is suitable depending on season.
Night Lighting
The enclosure should become dark at night.
Do not leave visible red, blue or purple lamps operating throughout the night.
Humidity
Standing’s Day Geckos originate from a comparatively dry region of Madagascar.
General humidity around:
50–70%
is appropriate in many captive situations.
Brief increases following misting are normal.
Humidity Cycle
Humidity should fluctuate naturally.
Following misting, humidity may rise considerably before gradually falling as the enclosure dries.
Regular drying periods are important.
Do not maintain the enclosure constantly wet.
Misting
Light misting:
Once daily
may be sufficient in many well-planted setups.
A second light misting may occasionally be appropriate depending on:
- Season
- Room humidity
- Ventilation
- Enclosure design
The enclosure should be allowed to dry substantially between misting sessions.
Hydration
Standing’s Day Geckos commonly drink droplets from:
- Leaves
- Glass
- Branches
- Bamboo
Misting therefore provides important drinking opportunities.
Water Bowl
A clean water dish should also be available.
Replace the water regularly.
Ensure the dish is stable and cannot easily be contaminated.
Ventilation
Excellent ventilation is essential.
Standing’s Day Geckos should not be maintained in stagnant, constantly humid conditions.
Poor ventilation can encourage:
- Mould
- Bacterial growth
- Skin problems
- Respiratory disease
Diet
Standing’s Day Geckos are omnivorous.
Their captive diet should include:
- Appropriately sized live insects
- Suitable nutritionally complete gecko diet
Dietary variety is important.
Live Insects
Suitable feeders include:
- Crickets
- Locusts
- Roaches
- Black soldier fly larvae
- Silkworms
- Other appropriately sized captive-produced insects
Prey should always be appropriately sized.
Gut Loading
Feeder insects should be properly gut-loaded before use.
Suitable gut-loading foods include:
- Leafy greens
- Vegetables
- Appropriate commercial gut-loading products
Calcium Supplementation
Live insects should be appropriately dusted with calcium.
Requirements depend on:
- Age
- UVB provision
- Overall diet
- Reproductive status
Growing juveniles and breeding females require particularly careful calcium management.
Multivitamins
A suitable reptile multivitamin can be offered periodically.
Avoid excessive supplementation.
Complete Gecko Diet
A nutritionally complete commercial gecko diet can provide the fruit and nectar-like component of the captive diet.
Prepare according to manufacturer instructions.
Remove uneaten food before it spoils.
Fresh Fruit
Small quantities of suitable soft fruit may occasionally be offered as enrichment.
Fresh fruit should not replace a nutritionally complete gecko diet.
Feeding Frequency
Juveniles can generally be offered food:
Daily or almost daily
Adults can generally be fed:
3–5 times per week
using a varied combination of live insects and complete gecko diet.
Adjust feeding according to:
- Body condition
- Activity
- Season
- Reproductive status
Feeding Ledges
Elevated feeding stations are useful.
They allow natural arboreal feeding without requiring the gecko to descend to the enclosure floor.
Obesity
Adult Standing’s Day Geckos can become overweight if routinely overfed.
Monitor:
- Abdomen
- Tail base
- Overall body profile
Adjust feeding according to body condition rather than feeding a fixed amount regardless of the individual.
Food Enrichment
Encourage natural feeding behaviour through:
- Live insect hunting
- Varying feeding locations
- Elevated feeding stations
- Controlled hunting among branches
Social Housing
Individual housing is the safest general recommendation.
Standing’s Day Geckos can be strongly territorial.
Adult Males
Adult males should not be housed together.
Territorial aggression can result in:
- Bite wounds
- Chronic stress
- Feeding suppression
- Restricted basking access
- Serious injury
Male/Female Housing
Compatible male/female pairs are sometimes maintained by experienced breeders.
A pair requires considerably more space and environmental complexity than a single animal.
Females must be monitored carefully for:
- Persistent courtship
- Mating injuries
- Weight loss
- Stress
- Feeding competition
Separate accommodation should always be immediately available.
Pair Bonding
Standing’s Day Geckos are sometimes described as forming relatively stable pairs.
This should never be interpreted to mean that any randomly introduced male and female will automatically coexist safely.
Compatibility must always be monitored.
Female Aggression
Females can also display territorial aggression.
Any animal showing signs of chronic stress or injury should be separated.
Sexing
Mature males generally develop:
- More pronounced preanal/femoral pores
- Broader tail base
- More obvious reproductive structures
Juvenile sexing can be considerably more difficult.
Breeding
Standing’s Day Geckos breed successfully in captivity.
Only healthy, mature animals in excellent condition should be bred.
Female Condition
Breeding females require excellent:
- Nutrition
- Calcium provision
- UVB
- Hydration
- Body condition
Repeated egg production places substantial demands on females.
Egg Laying
Females generally produce:
2 eggs per clutch
although single eggs may occasionally occur.
Several clutches may be produced during a breeding season.
Egg Deposition
Females seek protected locations for egg deposition.
Potential sites include:
- Hollow bamboo
- Cork
- Hollow branches
- Concealed enclosure furnishings
Suitable elevated laying locations should be available.
Incubation
Eggs can generally be incubated around:
25–28°C
under stable conditions.
Incubation commonly lasts approximately:
50–75+ days
depending on temperature and other factors.
Avoid excessive incubation temperatures.
Eggs should not be rotated after laying.
Hatchlings
Hatchlings require:
- Secure arboreal accommodation
- Fine climbing structures
- Dense foliage
- Appropriate UVB
- Moderate basking temperatures
- Regular access to drinking droplets
- Appropriately sized live prey
- Suitable complete gecko diet
- Appropriate supplementation
Hatchling Food
Suitable prey may include:
- Flightless fruit flies
- Pinhead crickets
- Tiny roach nymphs
- Other appropriately sized captive-produced feeders
Growing juveniles require careful calcium and UVB provision.
Hatchling Security
Young day geckos can exploit surprisingly small openings.
Carefully check:
- Doors
- Ventilation
- Cable ports
- Sliding tracks
- Lid fittings
before introducing hatchlings.
Juvenile Social Behaviour
As young animals mature, territorial behaviour may develop.
Juveniles should be monitored carefully and separated where aggression or competition occurs.
Quarantine
All newly acquired reptiles should undergo quarantine.
A minimum of approximately:
90 days
is a sensible starting point.
Monitor:
- Feeding
- Weight
- Faeces
- Skin
- Shedding
- Respiration
- Activity
Shedding
Healthy Standing’s Day Geckos generally shed successfully when correctly hydrated.
Retained shed may occasionally occur around:
- Toes
- Tail
- Limbs
Avoid forcibly pulling firmly attached skin.
Toe Health
Healthy adhesive toe pads are essential for normal climbing.
Retained shed or contamination can interfere with grip.
Inspect the feet periodically.
Signs of Good Health
A healthy Standing’s Day Gecko should generally display:
- Clear bright eyes
- Strong grip
- Firm jaw
- Alert daytime activity
- Regular basking
- Active hunting
- Appropriate body condition
- Smooth coordinated climbing
- Healthy skin
- Normal faeces
Warning Signs
Seek veterinary advice for:
- Persistent food refusal
- Unexplained weight loss
- Weak grip
- Tremors
- Soft jaw
- Swollen limbs
- Respiratory symptoms
- Persistent diarrhoea
- Severe retained shed
- Skin lesions
- Significant lethargy
Common Husbandry Mistakes
Enclosure Too Small
Standing’s Day Geckos are among the largest Phelsuma and require considerably more space than smaller species.
Insufficient Climbing Structure
Large, sturdy branches and bamboo should fill much of the usable enclosure space.
Inadequate UVB
These are strongly diurnal basking reptiles and require appropriate UVB.
Poor Visible Lighting
Bright daytime illumination is important for natural activity and behaviour.
Excessive Humidity
This species originates from a comparatively dry part of Madagascar and should not be maintained constantly wet.
Poor Ventilation
Humidity must be combined with excellent airflow.
No Cool Retreat
A hot basking area must always be balanced by substantially cooler shaded areas.
Feeding Only Fruit
A balanced diet requires appropriate live prey, calcium, vitamins and minerals.
Overfeeding
Large adults can become overweight when routinely overfed.
Housing Adult Males Together
Territorial aggression can cause serious injury.
Assuming a Pair Will Automatically Be Compatible
Male/female pairs require careful observation and separate housing must remain available.
Excessive Handling
Their speed and delicate skin make them unsuitable for routine handling.
Captive-Bred Animals
Captive-bred Standing’s Day Geckos should be strongly preferred.
Advantages include:
- Known origin
- Established feeding
- Better adaptation to captive conditions
- Reduced parasite concerns
- Reduced collection pressure on wild populations
Responsible captive breeding and accurate record keeping help maintain sustainable populations within herpetoculture.
Responsible Ownership
Before acquiring a Standing’s Day Gecko, ensure you can provide:
- A large permanent vertical enclosure
- Substantial secure climbing structures
- Dense visual cover
- Open basking areas
- Appropriate UVB
- Bright visible lighting
- A strong thermal gradient
- Cooler shaded retreats
- Moderate fluctuating humidity
- Excellent ventilation
- Regular access to drinking water
- Appropriately sized live insects
- Complete gecko diet
- Appropriate supplementation
- Long-term veterinary care
Their large size and potentially long lifespan make them a substantial commitment.
Suitability
Advantages
- One of the largest day geckos
- Distinctive adult appearance
- Attractive juvenile colouration
- Highly active during daylight
- Fascinating arboreal behaviour
- Excellent large display species
- Captive breeding achievable
- Long-lived
Considerations
- Requires considerably more space than smaller Phelsuma
- Fast and powerful climber
- Delicate skin
- Not suitable for routine handling
- Secure housing essential
- UVB required
- Bright visible lighting required
- Requires live feeder insects
- Territorial behaviour
- Long-term commitment
Summary
Standing’s Day Gecko (Phelsuma standingi) is one of the largest members of the genus and is an impressive Madagascan display reptile requiring substantially more space than smaller day geckos.
Successful husbandry centres on:
- Approximately 24" × 24" × 36" minimum accommodation for one adult
- Larger accommodation strongly preferred
- Substantial branches, bamboo and climbing routes
- Dense visual cover alongside open basking areas
- A localised basking surface around 32–35°C
- General daytime temperatures around 24–28°C
- Cooler shaded areas around 21–24°C
- Appropriate nighttime cooling
- Strong appropriate UVB
- Bright visible daytime lighting
- Approximately 50–70% general humidity with regular drying periods
- Excellent ventilation
- Regular access to drinking droplets and fresh water
- Appropriately sized gut-loaded live insects
- Suitable complete gecko diet
- Appropriate calcium supplementation
- Minimal unnecessary handling
- Individual housing as the safest default
When provided with sufficient space, strong UVB, bright lighting, substantial climbing structure, correct nutrition and appropriate humidity cycles, captive-bred Standing’s Day Geckos can make spectacular and long-lived display reptiles.
IMPORTANT INFORMATION:
This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.
Always check current legislation governing the acquisition, collection, import, transport, keeping, breeding or sale of reptiles in your jurisdiction.
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