Are you sure they arent transporting more tadpoles on their back? If you want to raise the tads to froghood, I would house
them individually with a clump of java moss and a piece of magnolia leaf in 16-32 oz deli cups, they can be fed "Frog and tadpole
bites" every other day. This way, your frogs can soak in the bromeliad without the worry of the tads eating eachother.