From a feeding point of view aquarium fish are never satisfied, they're always begging for food, it's a basic evolutionary reaction. Also, given the fact that bloodworm are mainly just water, and as a result very poor nutritionally, i'd only feed them as a once in a while treat. As
tlindsey
said, there are far better options out there to feed your feeders. And if the feeders are fed with a good diet, that will be better for anything that eats them too.