Madagascar Tomato Frog (Dyscophus antongilii) Care Sheet
The Madagascar Tomato Frog is a distinctive terrestrial amphibian native to northeastern Madagascar. Dyscophus antongilii is immediately recognisable by its rounded body, vivid orange-to-red coloration and characteristic defensive behaviour of inflating the body when threatened.
Tomato Frogs are predominantly terrestrial and spend considerable periods concealed beneath substrate or vegetation. Although relatively robust once established, successful long-term husbandry requires appropriate substrate depth, carefully managed moisture, good ventilation, clean water, suitable temperatures and a varied supplemented diet.
QUICK REFERENCE
Scientific Name: Dyscophus antongilii
Common Names: Madagascar Tomato Frog, Tomato Frog
Family: Microhylidae
Origin: Northeastern Madagascar
Adult Size: Approximately 6–10 cm, with females considerably larger than males
Lifespan: Approximately 6–10+ years in captivity, potentially longer with excellent care
Activity: Primarily nocturnal
Lifestyle: Terrestrial / fossorial
Diet: Insectivorous / opportunistic carnivore
Care Level: Beginner–Intermediate
NATURAL HISTORY
Dyscophus antongilii is endemic to northeastern Madagascar.
The species occurs in humid lowland environments associated with:
- Forest
- Wetlands
- Marshes
- Slow-moving waterways
- Ponds
- Vegetated drainage areas
- Disturbed habitats
Despite its association with wet environments, the adult frog is predominantly terrestrial rather than aquatic.
Tomato Frogs spend substantial periods concealed beneath:
- Leaf litter
- Loose soil
- Vegetation
- Other ground-level cover
They become considerably more active after dark and during humid or rainy conditions.
Their rounded body and relatively short limbs reflect a lifestyle based more around ground-level ambush feeding and burrowing than extensive climbing.
APPEARANCE
Madagascar Tomato Frogs are heavily built frogs with rounded bodies and relatively small heads.
Colour varies according to:
- Age
- Sex
- Individual
- Environmental conditions
Adults may display shades of:
- Orange
- Red
- Red-orange
- Yellow-orange
Females generally develop the most intense red coloration and are substantially larger than males.
The underside is typically considerably paler.
Young frogs may initially appear much less intensely coloured than mature adults.
DEFENSIVE BEHAVIOUR
When threatened, Tomato Frogs can inflate their bodies dramatically.
This makes the animal appear substantially larger and more difficult for a predator to swallow.
They can also produce a sticky defensive skin secretion.
This secretion may irritate:
- Eyes
- Mouth
- Nose
- Other mucous membranes
The secretion should never be deliberately induced.
Routine handling should be avoided.
ENCLOSURE
Tomato Frogs require a terrestrial enclosure providing substantial usable floor area.
For a single adult, approximately:
60 × 45 × 45 cm (24 × 18 × 18 in)
provides a useful minimum starting point.
Larger accommodation is encouraged.
Floor space and substrate depth are considerably more important than excessive enclosure height.
The enclosure should provide:
- Deep substrate
- Multiple hiding locations
- Leaf litter
- Shaded areas
- Clean water
- Good ventilation
- Appropriate moisture gradients
ENCLOSURE TYPE
Front-opening glass terrariums and appropriately ventilated terrestrial vivariums work well.
The enclosure should retain sufficient moisture without becoming sealed and stagnant.
Good airflow is important.
The enclosure must also be secure.
Although Tomato Frogs are not accomplished climbers, they can move surprisingly quickly when disturbed.
SUBSTRATE
Substrate is particularly important because Tomato Frogs naturally burrow.
A suitable substrate can contain:
- Organic topsoil
- Coco fibre
- Amphibian-safe soil mixtures
- Leaf litter
- Sphagnum moss used selectively
The substrate should be sufficiently loose for the frog to bury itself.
A depth of approximately:
8–15 cm (3–6 in)
is useful for adults.
Deeper areas can be provided where enclosure design allows.
The substrate should remain:
Moist but not waterlogged
Avoid:
- Gravel
- Calcium sand
- Fertilised soil
- Chemically treated soil
- Sharp substrate
- Aromatic wood products
LEAF LITTER
A generous layer of leaf litter is strongly recommended.
Leaf litter provides:
- Cover
- Moisture retention
- Environmental complexity
- Naturalistic hunting opportunities
- Protection for the underlying substrate
In bioactive enclosures it also provides habitat and food for clean-up organisms.
Use leaves collected from known safe sources or commercially prepared material intended for vivarium use.
HIDES & FURNISHINGS
Provide several sheltered locations.
Suitable furnishings include:
- Cork bark
- Cork flats
- Large pieces of wood
- Leaf litter
- Robust plants
- Artificial foliage
- Purpose-made hides
Hides should be positioned at ground level.
At least some cover should remain available even when the frog has rearranged or burrowed beneath the substrate.
TEMPERATURE
Tomato Frogs prefer moderate tropical temperatures.
Daytime
A useful general range is:
22–26°C (72–79°F)
A slightly warmer area may reach approximately:
26–27°C (79–81°F)
provided cooler areas remain accessible.
Night
Temperatures may fall moderately overnight.
Approximately:
18–22°C (64–72°F)
is generally suitable.
HEATING
Supplementary heating may not be required where suitable room temperatures are maintained.
Where heating is necessary, appropriately installed overhead heating is preferable.
Any heating equipment must be controlled using a suitable thermostat.
Avoid heating the entire enclosure uniformly.
A temperature gradient allows the frog to select appropriate conditions.
OVERHEATING
Tomato Frogs should not be subjected to prolonged excessive heat.
Temperatures approaching or exceeding:
28–30°C (82–86°F)
can become problematic, particularly where dehydration or poor ventilation is also present.
Never position the enclosure where direct sunlight can cause uncontrolled heating.
HUMIDITY
Tomato Frogs require moderately high environmental humidity.
A useful general range is approximately:
70–80% relative humidity
with natural fluctuations.
Humidity may rise following misting before gradually falling as the enclosure ventilates.
The substrate should retain moisture without remaining saturated.
Good ventilation remains important.
The objective is:
Moist substrate + humid air + good ventilation
rather than permanently waterlogged conditions.
MISTING
Regular light misting can help maintain appropriate moisture.
Misting is particularly useful during the evening as the frog becomes active.
The frequency required depends upon:
- Ventilation
- Room humidity
- Substrate
- Temperature
- Planting
- Enclosure design
Monitor the substrate rather than relying solely upon a fixed misting schedule.
WATER
A shallow container of clean amphibian-safe water should always be available.
The container should be:
- Large enough for soaking
- Shallow enough for easy access
- Easy to enter
- Easy to leave
- Regularly cleaned
Tomato Frogs may soak, particularly at night.
Water should be checked daily and replaced whenever contaminated.
LIGHTING
Tomato Frogs are primarily nocturnal but still benefit from a clear day/night cycle.
Approximately:
10–12 hours of daylight
per day is appropriate.
Good-quality LED lighting can support:
- Natural behavioural rhythms
- Plant growth
- Environmental cues
Shaded retreats should always remain available.
UVB
Low-level UVB can be provided as part of high-quality captive husbandry.
A Ferguson Zone 1-type exposure is appropriate.
Aim for approximately:
UVI 0.5–1.0 in exposed accessible areas
with:
UVI 0 beneath cover
The frog must always be able to regulate its exposure.
Actual UV levels depend upon:
- Lamp type
- Reflector
- Distance
- Mesh
- Enclosure height
- Furnishings
- Plant cover
Where possible, exposure should be confirmed using an appropriate UV Index meter.
DIET
Tomato Frogs are opportunistic terrestrial predators.
Captive diets should be based around varied, appropriately sized invertebrate prey.
Suitable foods include:
- Crickets
- Locusts
- Cockroaches
- Earthworms
- Appropriate larvae
- Other nutritionally suitable feeder invertebrates
Earthworms can form a particularly useful part of a varied diet.
Dietary variety is strongly encouraged.
Wild-caught insects should generally be avoided because of possible:
- Pesticide exposure
- Parasites
- Disease transmission
- Environmental contamination
PREY SIZE
Offer appropriately sized prey.
Tomato Frogs possess large mouths and strong feeding responses.
Avoid prey that is excessively large or difficult to swallow.
Uneaten feeder insects should be removed where necessary, particularly insects capable of biting or disturbing a resting frog.
FEEDING FREQUENCY
Feeding frequency depends upon:
- Age
- Size
- Body condition
- Temperature
- Activity
- Prey size
Juveniles
Growing juveniles can generally be offered appropriately sized prey:
Daily or near-daily
with quantity adjusted according to growth.
Adults
Healthy adults can generally be fed:
Approximately 2–3 times per week
with quantities adjusted according to body condition.
Tomato Frogs can become overweight when consistently overfed.
SUPPLEMENTATION
Cultured feeder insects should be appropriately gut-loaded and supplemented.
A suitable supplementation programme should provide:
- Calcium
- Vitamin D3 where appropriate
- Vitamin A
- Other essential vitamins and minerals
Requirements depend upon:
- Frog age
- Diet
- Feeding frequency
- UVB provision
- Supplement formulation
Follow the manufacturer’s recommendations for the particular amphibian-appropriate supplement being used.
VITAMIN A
Vitamin A is important in captive amphibian nutrition.
Deficiency may contribute to abnormalities involving:
- Feeding
- Eyes
- Skin
- Growth
- Reproduction
- Normal epithelial function
A reputable amphibian supplementation programme should provide an appropriate source of vitamin A.
Plain calcium alone does not provide a complete supplementation programme.
BODY CONDITION
Adult Tomato Frogs are naturally heavily built.
This should not be confused with obesity.
Monitor:
- Overall body shape
- Activity
- Mobility
- Feeding frequency
- Weight where practical
Their strong feeding response means food quantity should be controlled according to body condition rather than appetite alone.
SOCIAL HOUSING
Tomato Frogs may sometimes be maintained with similarly sized conspecifics where sufficient space is provided.
However, individual housing offers greater control over:
- Feeding
- Body condition
- Health monitoring
- Competition
Significant size differences should be avoided.
Like many frogs, Tomato Frogs may attempt to consume animals sufficiently small to swallow.
Never assume that different frog species can safely be housed together simply because their environmental requirements appear similar.
HANDLING
Tomato Frogs should primarily be considered display animals.
Routine handling is unnecessary.
Their skin is delicate and permeable, and defensive secretions may irritate human mucous membranes.
When handling is genuinely necessary, clean powder-free nitrile gloves moistened with amphibian-safe water are recommended.
Avoid contact with:
- Eyes
- Mouth
- Nose
- Open wounds
Handling should remain brief and gentle.
BEHAVIOUR
Tomato Frogs are primarily nocturnal.
During daylight they commonly remain:
- Buried in substrate
- Beneath leaf litter
- Inside hides
- Under vegetation
They may remain concealed for substantial periods.
This is normal behaviour.
Activity generally increases after dark and during humid conditions.
Observing the enclosure after lights-out provides a better indication of normal behaviour than daytime observation alone.
BURROWING
Burrowing is an important natural behaviour.
A Tomato Frog may bury most or almost all of its body beneath the substrate.
The enclosure should therefore provide sufficient substrate depth for this behaviour.
Repeatedly digging up a concealed frog for observation should be avoided.
Allow the animal to choose when to emerge.
BREEDING
Breeding occurs in aquatic environments and is associated with seasonal rainfall.
Males call to attract females.
Following amplexus, eggs are deposited in water.
The eggs hatch into aquatic tadpoles before undergoing metamorphosis.
Captive breeding generally requires deliberate seasonal conditioning and appropriate aquatic breeding accommodation.
Successful breeding requires planning for:
- Adult conditioning
- Egg management
- Tadpole accommodation
- Water quality
- Tadpole nutrition
- Metamorphosis
- Juvenile housing
Breeding should not be attempted without appropriate long-term plans for offspring.
TADPOLES
Tadpoles are entirely aquatic.
They require:
- Clean water
- Stable water chemistry
- Appropriate temperature
- Suitable food
- Adequate space
- Good water quality
As metamorphosis approaches, developing froglets require easy access to suitable terrestrial surfaces.
Young froglets are considerably smaller and more delicate than adults and require appropriately scaled accommodation and food.
ENRICHMENT
A naturalistic terrestrial enclosure provides useful behavioural enrichment.
Suitable enrichment includes:
- Deep substrate
- Leaf litter
- Multiple hides
- Different substrate depths
- Plants
- Cork bark
- Visual barriers
- Moisture gradients
- Varied appropriate live prey
The enclosure should allow the frog to choose between:
- Exposed and sheltered areas
- Wetter and relatively drier locations
- Warmer and cooler areas
- Different burrowing depths
Environmental choice is an important part of good captive husbandry.
CLEANING & MAINTENANCE
Regular maintenance should include:
- Removing faeces
- Removing uneaten prey
- Replacing contaminated water
- Cleaning the water container
- Removing decaying organic material
- Checking substrate condition
- Inspecting plants and furnishings
- Checking ventilation
Avoid unnecessarily disturbing buried frogs during routine maintenance.
In established bioactive enclosures, avoid unnecessary complete substrate replacement where the system remains healthy.
Any cleaning products used must be amphibian-safe and thoroughly removed.
BIOSECURITY
Good biosecurity should be maintained between amphibian enclosures.
Equipment should ideally not be shared between unrelated amphibians.
Where equipment must be reused, it should be appropriately cleaned and disinfected.
Hands should be washed before and after enclosure maintenance.
Never release:
- Frogs
- Tadpoles
- Eggs
- Plants
- Substrate
- Enclosure water
- Biological material
into the natural environment.
QUARANTINE
New Tomato Frogs should undergo an appropriate quarantine period before entering an established collection.
Monitor:
- Appetite
- Weight
- Body condition
- Activity
- Skin condition
- Faeces
- Hydration
- General behaviour
Separate equipment should ideally be used for quarantined amphibians.
Veterinary assessment and appropriate diagnostic testing should be considered where health concerns exist.
HEALTH
Potential health problems include:
- Bacterial infections
- Fungal infections
- Parasitic disease
- Nutritional deficiencies
- Metabolic bone disease
- Obesity
- Dehydration
- Skin damage
- Trauma
Warning signs include:
- Persistent refusal to feed
- Unexplained weight loss
- Excessive weight gain
- Weakness
- Abnormal posture
- Skin discolouration
- Redness
- Swelling
- Skin lesions
- Persistent abnormal behaviour
Persistent or serious health concerns should be assessed by a suitably experienced exotic or amphibian veterinarian.
LONG-TERM CONSIDERATIONS
Madagascar Tomato Frogs can make impressive display amphibians and are generally less demanding spatially than large arboreal species.
However, successful long-term maintenance still requires attention to:
- Substrate depth
- Moisture
- Ventilation
- Temperature
- Water quality
- Nutrition
- Supplementation
- Body condition
- Veterinary access
Their tendency to remain buried for long periods is normal and should be respected rather than encouraging unnecessary disturbance or handling.
A well-designed terrestrial enclosure allowing natural burrowing, hiding and nocturnal foraging provides the best environment for this species.
IMPORTANT INFORMATION
This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.
Madagascar Tomato Frogs (Dyscophus antongilii) can produce a sticky defensive skin secretion when threatened. Avoid contact with the eyes, mouth and other mucous membranes and keep handling to a minimum.
If you have concerns about an animal’s health or care, consult a suitably experienced exotic or amphibian veterinarian.
Information correct at the date of publication.
ReptileCommunity.com | Revised: August 2026