Daytona Beach - A Special Place?
You'll be visiting the land of franchise feeding! Good luck. We've lived in nearby Ormond Beach since June and are still trying to adjust to the lack of any good independent restaurants - "Toto, this sure is no Ft. Lauderdale."
There is supposed to be a so so seafood place in New Smyrna Beach, but I don't know the name - sorry. As far as seafood in Daytona, I'd have to direct you to a whole group of under average places on AIA at the beach - over the Causeway. We hated them, but as a tourist, you will enjoy the smell of the salt air and the view. Perhaps that might make up for the less than stellar meal you'll be getting.
In a pinch, I'd recommend Frappes in Ormond (ok $$) or Billy's in either Ormond Beach or their other place near New Smyrna Beach for a nothing fancy, good quality, good service and reasonably priced meal. Been there for 50 years... Sorry I cannot be more positive.. Enjoy the ocean.