Shot answer... No...
Long answer... No, due to the fact that turtles are predatory animals and they will 90% of the time eat any fish small enough to fit into their mouths. Feeding them live fish every once in a while isn't a bad thing, but make sure not to do it too often or they'll be dependent on souly live food...
Also, IMO so you know there is no such thing as a stupid question, every question deserves an answer regardless of how simple an answer it may be, never be afraid to ask. Without asking you'll never gain the knowledge you need to find the answer.