Budgett's Frog

Overview

Budgett's frog is a flattened, round frog that seems to be all mouth ¹. It is olive-brown to gray with mottling, and its cream-colored eyes sit close together high on the head ¹. Adults grow to about 4 to 5 inches, and females are larger than males ¹. The Reptilia Zoo gives a typical captive lifespan of about 10 to 15 years ².

It belongs to the family Ceratophryidae ³, alongside the horned (Pac-Man) frogs. LafeberVet lists Budgett's frog among the horned frog's relatives ⁴.

A note on our sources. No veterinary care sheet covers this species. The husbandry below combines zoo natural history ¹² with Merck's veterinary guidance for keeping amphibians ⁵⁶⁷.

Natural history

Budgett's frogs live in or near permanent and seasonal waters in Paraguay, Argentina and Bolivia ¹. They are semi-aquatic and are thought to be nocturnal. They wait submerged in water or mud with only their eyes and nostrils showing ¹. Their short legs make them poor swimmers ¹.

In the dry season they dig into the bottoms of pools, using a shovel-like tubercle on each hind foot. There they shed several layers of skin to form a waterproof cocoon. When the rains return they come back out to feed and breed ¹.

Wild Budgett's frogs eat mostly other frogs (especially tadpoles), snails and insects ¹. The IUCN lists the species as Least Concern ¹².

Enclosure

• Mostly water, but shallow. These are semi-aquatic, poorly swimming frogs ¹. In the wild they sit in water or mud with only eyes and nostrils showing ¹, so keep the water shallow enough for the frog to rest with its nostrils above the surface ¹.
• Water quality is everything. Amphibians absorb toxins through their skin ⁵:
  • Use water free of chlorine, chloramine, ammonia and nitrite, and never use distilled water.
  • Test aquatic setups weekly and change water often.
  • Use gentle filtration that doesn't create strong currents.
• Secure, ventilated lid ⁵.
• Housing. Keep them singly. Budgett's frogs are aggressive and eat other frogs ¹.

Temperature & lighting

No species-specific veterinary targets are published. Merck's general guidance is 60–70°F for most amphibians and 75–80°F for tropical species ⁵. Amphibians kept outside their preferred range can become immunosuppressed and develop secondary infections ⁵. Use a thermometer ⁵, and ask an amphibian vet for species-specific targets ⁵.

Merck's owner guide says UVB lighting is required to prevent metabolic bone disease in amphibians. Replace bulbs every 6 to 8 months ⁵.

Humidity

A largely aquatic setup keeps humidity high. Use a secure but ventilated top, aiming for about 1 to 2 air changes per hour ⁵.

Substrate

For the related horned frogs, LafeberVet notes that a bare tank with about ½ inch of water, cleaned daily or more often, is an option ⁴. If you use gravel, it must be too large to swallow or small enough to pass, because these frogs gulp anything near their prey ⁵. Remove waste and uneaten food daily ⁵.

Diet & supplementation

• What they eat. In captivity, insects such as crickets, mealworms and roaches, plus occasional small vertebrates ².
• Avoid overfeeding. Many amphibians keep eating as long as food is offered, and obesity is a real disease ⁶.
• Frozen fish. Frozen fish can cause thiamine deficiency, which shows as tremors and seizures ⁶.
• Supplements. Insect-heavy diets need calcium and vitamin supplementation to prevent metabolic bone disease. For the related ornate horned frog, LafeberVet dusts insects two to three times weekly for juveniles and once weekly for adults ⁴⁶.
• Feed with tongs. These frogs strike at anything that moves ¹⁴.

Handling & temperament

Budgett's frogs are aggressive ¹. When frightened they inflate, stand up on their short legs, lunge with an open mouth and shriek ¹. They have no teeth, but they do have two sharp-edged structures in the jaws ¹, so a bite can hurt. Most frogs should be left in their enclosure, because handling damages their skin ⁸. Move them with a container or net ⁸. Wash your hands afterward, because amphibians can carry Salmonella ⁹.

Health

Common issues

• Poor water quality from ammonia, nitrite or chlorine, which damages the skin ⁵.
• Obesity from overfeeding ⁶.
• Metabolic bone disease and thiamine deficiency from diet problems ⁶.
• Bacterial infections such as red-leg syndrome ⁷.

When to see a vet

See an amphibian vet for weakness, loss of balance, skin color changes, red spots or redness of the legs ⁷, or for tremors or seizures ⁶.

Breeding overview

Budgett's frogs breed quickly after the rainy season begins and they emerge from their burrows, so the young can develop before the pools dry ¹. Calls are used for territory and mating ¹. Females are larger than males ¹.

Legal & ethics

Budgett's frog is listed as Least Concern by the IUCN ¹. Localized threats include habitat loss, pollution and collection for the pet trade ².

Sources

1. Budgett’s frog · The Dallas World Aquarium
2. Budgett’s Frog · Reptilia Zoo
3. Lepidobatrachus laevis · Animal Diversity Web, University of Michigan
4. Basic Information Sheet: Ornate Horned Frog · LafeberVet
5. Housing for Amphibians · Merck Veterinary Manual
6. Nutritional Diseases of Amphibians · Merck Veterinary Manual
7. Common Infectious Diseases of Amphibians · Merck Veterinary Manual
8. Frogs as Pets · VCA Animal Hospitals
9. Salmonella, Feeder Rodents, and Pet Reptiles and Amphibians · U.S. Food and Drug Administration

Last reviewed 2026-10-24 by Novel Fauna. This guide is general husbandry information, not veterinary advice. When an animal is sick, see a veterinarian experienced with exotic animals.

Revision history

1. 2026-10-24 Library complete: 20 more cited guides (70 total), Invertebrates group, care targets migration 0020, source title fixes 5cf06a2

Evidence grades: Novel Fauna editorial: source classification, not yet expert-reviewed, 2026-10-25. What the grades mean.

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