ReptiFlow

Care sheets

Amphibians

Tomato frog

Dyscophus antongilii

Photo: Dyscophus antongilii02 · Franco Andreone - [:it:Wikipedia:Autorizzazioni_ottenute/Franco_Andreone see authorization] · CC BY-SA 2.5 · 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 sourcesJosh’s Frogs — Dyscophus antongilii: profilo di allevamentoSwell Reptiles, Regno Unito — Dyscophus antongilii: alloggioBaines et al. (2016) — UV-Tool: metodo generale, non protocollo specificoUniversity of Michigan — D. antongilii biologyAmerican Museum of Natural History — Tomato frog life cycleAZA — Amphibian Husbandry Resource Guide: quarantineBaines et al. 2016 · UV-Tool, species tableBaines 2024 · UVB lighting for reptilesMerck Veterinary Manual — Proximate Analysis of Whole PreyArbor View Animal Hospital · Axolotl lightingCDC — Reptiles and Amphibians: hygiene and cross-contaminationMerck Veterinary Manual — Management and Husbandry of Reptiles: quarantine
TemperaturesAbout 23–24 °C
Recommended enclosure60 × 45 × 30 cmSwell adult referenceLength × depth × height
HumidityMaintain humidity at 50–70% and moist substrate without standing water.
Adult sizeFemales up to about 10 cm; males about 6 cm

Description

Dyscophus antongilii is a terrestrial frog from northeastern Madagascar. Larger females are often vivid orange-red, while males are generally more yellowish. It lives on the ground in humid habitats and hunts by ambush. When disturbed, it may inflate and release a sticky defensive skin secretion.

LifespanUp to about 10 years

Behaviour

Burrows and waits for prey; little visible activity does not replace checks of appetite and body condition.

Housing together

House animals individually with freely accessible hides. Prepare separate accommodation before any introductions.

Enclosure and climate

Provide soft digging substrate, hides and a shallow dish of treated water. Remove uneaten prey.

Setup

Prepare new water in a dedicated container and treat chlorine and chloramine before using it for dishes, substrate or misting, following product instructions.

About 23–24 °C. Do not derive a new gradient by averaging different protocols.

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.

Burrowing and furnishing stability

Secure rock and platform supports to the floor before adding substrate to the specified depth. Leave a continuous digging area and remove material beside bases as a test: furnishings must remain supported. Complete the digging layer before adjusting lamp heights, as it changes the height the animal can reach.

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

Ferguson zone not assigned with sufficient precision to this taxon.

One UVI peak is not verified for this entry. Adjusting the installation requires a target for the identified species and origin; the layout should provide screened areas and voluntary light access. A missing number does not establish that UVB is useless.

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: the precise requirement is not established for this entry; no separate UVA source is prescribed. Evaluate illumination, retreats and life stage together.

Linear UVB tube with reflector, sized once species UVI is established; no single verified percentage for this entry.

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 mesh15 cm25 cmd = source-to-back distance, not source-to-floor distance
Example with height 30 cm and animal height 10 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

The available table treats D. guineti: it does not validate a zone for D. antongilii. Offer screened litter and select a UV protocol only after verifying the correct taxon.

An example layout in the enclosure

To make the layout concrete, take housing measuring 60 × 45 × 30 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 25 cm above the floor and the back or head at 10 cm. The geometric distance is therefore 15 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 25 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. First establish a verified UVI target for the identified taxon. 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 metre 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 metre, use the manufacturer’s instructions and measurements for the exact configuration, including safety clearances.

When UVB or UVA are absent

When keeping without UVB, D3 must be supplied through a complete diet or species-appropriate supplementation. Calcium alone does not replace D3. Check existing amounts in prepared diets and multivitamins before combining products; dosage also depends on diet and cannot be derived from lighting hours.

UVA has no dietary replacement. Maintain appropriate illumination and photoperiod without adding an intense source to compensate for unverified information: amphibian exposure must be evaluated by species and life stage.

Humidity and ventilation

Maintain humidity at 50–70% and moist substrate without standing water. Measure near hides without letting the hygrometer touch wet bedding, and also inspect substrate beneath retreats. If readings stay outside the specified values, check blocked vents and standing water before adjusting water input; recheck after the change.

Feeding

Offer Dyscophus antongilii varied invertebrates with appropriate supplementation. Terrestrial predator: moderate-sized insects and earthworms, without continuous feeding in the substrate.

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
Crickets and locustsMain choicesSupply protein and encourage hunting; calcium is low relative to phosphorus, so preparation and supplementation are needed.Use captive-bred insects and gut-load them as described below. Select suitably sized feeders, place the meal’s batch in a clean container and apply a thin calcium coating immediately before offering them.
Feeder roachesMain choicesThese feeders provide a useful second protein source for rotation, but do not constitute a complete diet or replace calcium supplementation.Offer well-fed soft nymphs sized to the mouth; avoid excessively hard adults.
Earthworms from controlled culturesMain choicesSoft prey with a generally more favourable mineral balance than unsupplemented crickets; particularly useful for amphibians. They are not a reason to eliminate all variety.Rinse and cut only if required for mouth size. Avoid dyed fishing bait, cultures on contaminated manure and collection from treated soil.
Waxworms, mealworms and superwormsOccasionalFat-rich larvae concentrate energy and often contain little calcium: use as a small part of variety, not the sole food.Replace part of the meal instead of adding them to a full ration. Avoid hard or oversized larvae for small animals.
Wild insects, fireflies and contaminated preyAvoid / not a stapleMay carry pesticides, parasites or toxins; a healthy appearance does not establish safety.Use traceable feeder cultures; do not collect insects beside roads or treated gardens.

Comparable nutritional values

Protein, fat, calcium and phosphorus are percentages of dry matter, excluding water; dry matter itself is a percentage of fresh weight. These are reference analytical values compiled in a clinical table, not guaranteed contents of your batch or a universal ranking. Age, rearing, feeding and supplementation change composition. Do not compare them directly with fresh-food percentages or already diluted prepared diets. Comparable numbers are not provided for other foods.

InsectDry matterCrude proteinCrude fatCalcium / phosphorusCa:P
Adult house cricketAcheta domestica32% of fresh weight62.6% DM20.4% DM0.3 / 1% DM0.3:1
Migratory locustLocusta migratoria31% of fresh weight67.5% DM14% DM0.1 / 0.7% DM0.14:1
Mealworm larvaTenebrio molitor32.8% of fresh weight52.8% DM36.1% DM0.3 / 0.8% DM0.37:1

DM = dry matter. Ca:P describes calcium relative to phosphorus before supplementation: a protein-rich feeder may still be calcium-poor. Offered portions remain those for this species and life stage.

Meals by age and size

Stage and sizeFrequencyAmount per meal
Newly metamorphosed: tail absorbed and terrestrial feeding establishedDaily, small portionsPinhead crickets or other microfeeders in small batches; count catches for about 5 minutes. Do not leave large crickets with newly emerged froglets.
Growing juveniles and subadultsDaily, moving to alternate days as growth slowsInitial trial portion: 3–5 small insects, one at a time. Count those eaten in about 5 minutes; stop when interest wanes rather than continually refilling. Adjust the count to actual prey size and growth.
Adults with slowed growth2–3 meals weeklyInitial trial portion: 3–5 small insects, one at a time. Count those eaten in about 5 minutes; stop when interest wanes rather than continually refilling. Adjust the count to actual prey size and growth. A suitable earthworm can replace part of the insects in species accepting it.

Adjusting portions

To assess the portion, compare the amount and type of food eaten with growth and body condition. Weekly weighing of juveniles and monthly weighing of adults helps follow the trend. Adjust the ration gradually when growth or reserves require it; reduce it if body condition indicates excess weight or leftovers remain. Investigate unexpected weight loss or abnormal swelling rather than addressing it only with more or less food.

Preparing and offering meals

Prepare insects during the 24–48 hours before feeding: keep them in their culture container with a complete feeder diet and safe hydration. Check access to food and water and remove spoiled leftovers. Then select feeders of the specified size and prepare only the batch to be offered. This step, called gut-loading, improves prey quality; bran or potato alone do not correct deficiencies.

At feeding time the prey should be easy to swallow. As an initial guide, choose insects no wider than the space between the eyes, then adapt size to the mouth and the animal’s response. Offering them individually or in an escape-resistant dish lets you see actual intake and remove leftovers.

Use clean equipment and water treated for chlorine and chloramine for tongs, bowls and rinsing; avoid soap residue. Offer near the animal without making it swallow substrate.

Calcium and vitamins

Immediately before feeding, lightly coat low-calcium insects with phosphorus-free calcium: they should remain visible, without clumps. Common insects often have an unfavourable calcium:phosphorus balance; rotating them alone does not correct it.

Choose one supplementation programme: plain calcium for ordinary meals and a species-appropriate multivitamin at its labelled feeding intervals. Record the product and its existing D3 and vitamin A; do not add a second dose to meals using a combined product. With measured UVB, agree the oral D3 provision; product concentrations are not interchangeable.

For amphibians choose a product appropriate for vitamin A as well; beta-carotene alone should not be considered equivalent in every species. Therapeutic vitamin A doses require a veterinarian.

Daily care

First days

Before arrival, run the complete enclosure and check conditions at resting positions. Prepare water, food and a transfer container. Record the portion offered, leftovers and weight; observe from outside and open hides only when necessary for cleaning or transfers.

Cleaning

Each day check water and collect waste, including beneath retreats, with dedicated tools. Clean dishes and replace their water; for pools follow the species’ water-change plan. Wash your hands afterwards. 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

Use a container for transfers; if essential, moist powder-free gloves. Avoid routine contact, soap residues and water untreated for chlorine and chloramines.

Checks

Check weight, appetite, movement and skin; consult a veterinarian experienced with the species if changes persist. Wounds or laboured breathing require prompt contact without waiting for them to persist.

Breeding

Sex, maturity and readiness

Confirm D. antongilii, distinguishing it from D. guineti. Females are generally larger; confirm sex and growth before introductions and maintain stable feeding and condition. Red coloration alone does not establish maturity.

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

Prepare a rainy phase with clean water, low supports and emerged land while retaining ventilation. Prepare and check the breeding tank before adding animals; prevent simulated rain becoming a flood with no exit.

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

The male calls and the pair enters amplexus. Minimise disturbance and check that the female can reach supports. If interaction does not progress, return to normal husbandry without repeated handling or increasingly intense stimulation.

Spawning and egg collection

Eggs are laid in water; a female may produce up to about 1,500. Prepare multiple larval containers, record spawning and estimated numbers and separate adults. Do not schedule breeding without space and food for the next stage.

Aquatic development and hatching

Hatching around 36 hours and metamorphosis around 45 days are described; these are not guaranteed deadlines and no undocumented temperature is attached here. Check water, development and losses daily without forcing eggs open.

Use water treated for chlorine and chloramine at the same temperature as the original container. Guard intakes and keep movement gentle. Check eggs and water daily, remove dead material without breaking healthy eggs, siphon leftovers and faeces, test ammonia and nitrite and change water with prepared water as needed.

First meals and juvenile care

Use finely dispersed food appropriate for tiny tadpoles and check actual feeding, avoiding bottom accumulations. Prepare low exits before metamorphosis; after emergence offer microfeeders and damp hides, separating markedly different growth sizes.

Observe each larva’s feeding, growth and developmental stage daily, avoiding unnecessary capture for weighing. Also check water quality, injuries and size differences: a feeding group does not establish that every larva eats. Separate injured individuals or those excluded from food, and adjust space and diet as they develop. For forms that become terrestrial, prepare gentle exits and shelters before the transition to land.

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

Prepare rearing tanks, covers, a mature sponge filter or containers for regular water changes, water tests, a narrow siphon, thermometer and productive first-food cultures. The number of offspring raised must match the actual capacity to feed them and maintain clean water.

A consistent diary using actual dates helps follow reproduction in Dyscophus antongilii. 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.