Mine not a bullfrog its an Albino Litoria Aurea.
i never hand any of my frogs, i think it makes them lazy plus it would take to long haha, feed mine on locust, crickets and other bugs that are around. i don't feed mine everyday and if they don't eat will just try again later. only yet worried when if they start losing weight. i may take it awhile to settle in to its new enviroment
in saying that i have never keep bullfrogs as we are not allowed them here