Pyxi Frogs normaly have more of an appetite than most other frogs. Some adults have been known to devour 50 Night Crawlers in one feeding. Of course this was a very large male. Adult Pacman Frogs tend to slow down as the mature and will eat less. This is due to them not growing anywhere near as fast as when growing from froglet to juvenile to adult. Most I've ever had one of my pacman frogs eat was twelve in one feeding.
Kind of funny. My Pyxi is named Günther.