A modest footprint, arranged for an ambush
Pacman frogs — horned frogs from South American grasslands — barely move by choice, so a terrarium around ten to twenty gallons suits a single adult. Floor space matters more than height, and the enclosure should sit somewhere calm, because vibrations through the ground disturb an animal that hunts by feeling prey walk past. Front-opening doors help, but a simple lidded tank works well for this species; what matters most is what fills the bottom of it.
Deep, damp substrate is the whole habitat
Fill the floor with several inches of coco fibre or similar soil, mixed with dechlorinated water until it holds together like a wrung-out sponge — damp throughout, never soupy. The frog will dig itself in until only its eyes and horns break the surface, and it may stay in that crater for days, waiting. Keep the substrate at that moisture by misting and spot-mixing, and replace it regularly, since a sedentary frog soaks its own patch of soil in waste. Bare, dry or shallow substrate is the most common pacman setup failure.
Warmth and humidity without fuss
Hold the enclosure in the high 70s to low 80s with a low-wattage heat mat on one side wall or a gentle overhead lamp on a thermostat, so the frog can shuffle toward or away from the warmth. Humidity should stay high, helped by the damp substrate, a partially covered top and daily misting with dechlorinated water. All water that touches this frog must be dechlorinated — its skin absorbs its surroundings directly, which is also why perfumed sprays and cleaning chemicals must stay away from the enclosure.
The soaking dish — shallow on purpose
Set a wide dish into the substrate with water no deeper than the frog's chin. Pacman frogs soak to hydrate but are clumsy swimmers, and a deep bowl is a drowning risk for an animal shaped like a hockey puck. Refresh the water daily with dechlorinated water; the dish doubles as the frog's toilet, and it will show it. Beyond the dish, furnish almost nothing: a small plant or cork piece for shade at most, since hunting space and burial soil are what this frog actually uses.
A short daily checklist
Pacman care is a brief daily round — check the dish, mist, confirm the substrate is damp, glance at the temperature — plus feeding sessions a few times a week. Those small tasks are easy to assume someone else did. KinsLe's Care Teams lets the household assign that daily round and mark each check complete with a timestamp, so the frog's water is verifiably fresh and its soil verifiably damp, not just probably done.