What do i feed bullfrog tadpoles? and can i substitute it for something else? and where do ii get it?

if you found them in the wild and there is alot get a storage bin fill it with the water from where you found them and put some rocks that are half in the water for them to ledge on. feed them meal worms found at petsmart ask an associate for more details or algae in a pond.if the frogs are not wild then just ask a petsmart associate for food.