1. Taste difference: Grass carp is tender and delicious, and the fried fish pieces are more tender and smooth, with better taste. Carp, on the other hand, is fatty and difficult to chew, and the fried fish pieces taste relatively poor.

2. Treatment of fishbone: There are many fishbone in carp, which is more troublesome to handle. Fish bones should be removed from fried fish pieces, while grass carp has relatively few bones, which is more convenient to handle.