The short answer for a Pacman frog
A Pacman frog can have nightcrawler pieces, a small hornworm, or large roaches as treats, offered once a week or so as part of a normal feed. This frog is an ambush carnivore that buries itself in damp substrate and lunges at whatever walks past, so wriggling, ground-level treats suit a Pacman frog perfectly. Treats replace part of the meal rather than extending it, and every item should be dusted the same way its staple insects are, because a Pacman frog's rapid growth depends on that balance.
Why this frog's treats must stay lean
A Pacman frog spends nearly all its energy budget on sitting still, which means treat calories have nowhere to go. Fatty extras are stored rather than burned, and a Pacman frog fed rich treats often develops a bloated, heavy body that hides its eyes and strains its organs. Worms and large insects are the sweet spot for this species: soft, hydrating, and exciting to strike at, without the fat load of vertebrate prey. A pinky mouse, sometimes suggested as a Pacman frog treat, is better treated as a very rare exception or skipped entirely.
Treats that suit a Pacman frog
A nightcrawler, cut to a manageable length for smaller frogs, is the classic Pacman frog treat: it wriggles at ground level exactly where this frog hunts. A small hornworm adds moisture and a slow target, and a large roach gives a crunchier chase across the surface. Some Pacman frogs take a piece of silverside fish from tongs as a scent-rich change. Whatever the treat, offer it with tongs at the substrate surface in front of the buried Pacman frog, never dropped from above, and never leave live prey loose to bite at the frog's skin.
How often a Pacman frog can have them
An adult Pacman frog eats only a few meals a week, so one treat item folded into roughly one feed a week is a sensible ceiling, with plain dusted staples making up the rest. Juvenile Pacman frogs feed more often and grow quickly, but their treats should stay small and secondary to staple insects at every feed. Never offer a Pacman frog a second treat feed on a rest day to reward a good strike; its digestion, like its hunting, runs on a slow, patient clock, and overfeeding is the commonest feeding mistake with this species.
Watch-outs for a Pacman frog
Watch a Pacman frog's shape from above: it should look round but defined, with eyes clear and sitting proud, not sunk under swollen skin. A Pacman frog that stops lunging, leaves food untouched across several feeds, develops redness on the underside, or becomes floppy and unresponsive needs an amphibian-aware vet promptly, since frogs decline quickly. Also remove any uneaten live treat from a Pacman frog's enclosure the same evening, because a loose cricket or roach will chew on a resting frog and foul the damp substrate it breathes through.
Logging treat feeds for a frog that hides its meals
A Pacman frog swallows a worm in one lunge and settles back into the substrate as if nothing happened, leaving no trace for the next keeper. A shared feeding note is the only reliable memory. With KinsLe Care Teams, each feed for this Pacman frog can be ticked off with the treat item named, so its weekly worm stays a weekly worm.