Boy, they sure are love birds! Good thing they don't have the metabolic systems of lovebirds or they'd be dead! When frogs/toads begin to starve(generally speaking), they respond(to the best of my understanding)with a slowing down of the metabalism. There is one frog/toad that hybernates all year and eats only once! Alligators/Crocks will guard their eggs for months without eating. (not saying your FBTs are like this-mind you!). But, If they were suffering, they first would discontinue to breed, and then you'd see them stop being as active, preparing to slow metabilism. Sounds to me your guys are still at it, hopping around in amplexus, looking for proper laying site. The female doesn't attempt to kick off the little male, right? Then, most likely starvation is not going on. Make sure you have food in the tank so that if they feel they must have some food, they will have some. And when they do lay the eggs, they will need to eat. By the way, some breeders of certain frogs trick into breeding by cooling the frogs a bit and removing any food for 4-5 days then raising temps to encourge frogs to get into amplexus. You don't need to do this since your frogs are already in amplexus, but this tells you that not eating prior to breeding(a pusedo winter)has been forcibily done. What sort of water site do you have for them by the way?