Welcome to the forum. First off, be sure you read this: Frog Forum - Pacman and Horned Frogs - Ceratophrys - Care and Breeding. There could be several reasons for your frogs not eating well. Without knowing more about the frogs conditions it is very hard to tell what is the cause. Please answer these questions: http://www.frogforum.net/pacman-frog...enclosure.html. Most likely reasons:

1) Most pacs will only eat live prey. Try feeding live crickets. Better yet, use nightcrawlers. They are more nutritious and make a better staple diet.

2) Their appetite does slow down as they reach maturity which can happen anywhere from 8 months to over a year. A pacman that is at least a year probably won't eat every night. But it sounds like she is isn't eating enough.

3) Stress. These frogs getted stressed very easily and when they do, they stop eating. Moving to a new home was stressful for your girl. Any problems with her enclosure can cause stress as well: improper temps/humidity, too much noise, too much handling, etc. Also make SURE you dechlorinate tap water.