Is it ok for a Turtle to eat crab food?

It's not going to hurt the turtle. It's just formulated for a special diet so the turtle couldn't LIVE off that alone, but since it's just mainly plant material it won't hurt the turtle to eat it once in awhile. I would make sure to get rid of one or separate them tho because how's the crab supposed to get any food if the turtle is snatching it all up first lol?