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Pacman Frog (Ceratophrys ornata) Care Guide

Pacman frogs, also known as Ceratophrys ornata, are chunky, ground-dwelling amphibians native to parts of Argentina, Uruguay, and Brazil. These unique frogs grow between 4–6 inches long and thrive in humid grassland environments where their camouflage helps them ambush prey.

With their round, squat bodies, stubby limbs, bulging eyes, and famously oversized mouths, Pacman frogs certainly live up to their name. Their natural coloring typically includes a blend of green, brown, yellow, black, and white, though captive breeding has led to a wider range of morphs and patterns.

They’ve become popular in the pet trade thanks to their hardy nature and minimal space requirements. With proper care, these frogs can live for over a decade, making them a solid choice for beginner amphibian keepers.

While this guide focuses on C. ornata, much of the information can be applied to other members of the Ceratophrys genus. However, it’s still best to look into the specific needs of your frog’s exact species.

Enclosure Requirements

Minimum Enclosure Size:
A single Pacman frog will do well in a terrarium measuring at least 24”L x 18”W x 12”H. While they don’t move around much, they do need enough space to avoid sitting in their own waste and to encourage natural movement. Bigger is always better.

Cohabitation:
These frogs are solitary by nature and highly cannibalistic. Housing more than one together is strongly discouraged.

Lighting Needs

Is UVB Necessary?
While they can technically survive without UVB, adding a low-level UVB bulb is highly beneficial. It helps with vitamin D synthesis, supports a strong immune system, and improves digestion.

Recommended UVB Bulb:

  • Arcadia ShadeDweller (mounted in a reflective fixture)

Ensure your frog can’t get closer than 8” to the bulb, and remember that UVB doesn’t penetrate glass or plastic. Replace your UVB bulb every 12 months.

Day/Night Cycle:

  • Summer: 14 hours of light

  • Winter: 10 hours of light
    This simulates seasonal changes and promotes overall well-being.

Temperature & Heating

Ideal Temperature Range:

  • Daytime: 75–80°F

  • Nighttime: No lower than 65°F
    Never allow temps to exceed 85°F, as this can be fatal.

Monitoring & Heating:
Use digital thermometers with probes placed at mid-level. If extra warmth is needed, a low-wattage incandescent bulb can help. If your room tends to overheat, a Pacman frog may not be the best choice.

Humidity

Humidity Levels:
Maintain 60–80% humidity throughout the enclosure. Use a digital hygrometer with the probe placed centrally.

Tips for Maintaining Humidity:

  • Mist the tank once or twice daily

  • Use moisture-retaining substrate

  • Add live plants to increase humidity naturally

Substrate Choices

A deep, naturalistic substrate supports healthy humidity and encourages digging behavior. Consider using:

  • Eco Earth (coconut fiber)

  • Exo Terra Plantation Soil

  • Peat moss

  • ReptiSoil

  • Sphagnum moss

Top with leaf litter for added enrichment. Fully replace the substrate monthly unless you’re running a bioactive setup.

Terrarium Décor

While not the most active species, Pacman frogs still benefit from a stimulating environment. A bland tank can lead to stress or boredom, so decorate thoughtfully.

Decor Ideas:

  • Leaf litter and seed pods

  • Natural wood (like mopani or cork bark)

  • Rocks and moss

  • Live or artificial plants

  • Small hiding spots or themed ornaments

Always provide at least one secure hiding place.

Diet & Feeding

Pacman frogs are carnivores and do best on a varied diet of live, gut-loaded insects, with the occasional small rodent (no more than twice a month).

Feeder Options Include:

  • Crickets

  • Dubia roaches

  • Discoid roaches

  • Black soldier fly larvae

  • Hornworms

  • Earthworms

  • Mealworms (in moderation)

  • Superworms

  • Silkworms

  • Grasshoppers

Rodents:
An appropriately sized mouse can be offered every other week instead of insects.

Supplements:
Dust insects with Repashy CalciumPlus LoD at every feeding for juveniles and once a week for adults to ensure proper nutrition.

Handling Tips

Pacman frogs are hands-off pets and do not enjoy handling. Their skin is sensitive to oils and chemicals, so handling should be avoided unless absolutely necessary.

If you must handle your frog:

  • Wear powder-free nitrile gloves

  • Gently cup the frog’s body

  • Keep handling time very brief

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