I'd say with near certainty that you have aefw. The worm looks a bit weird, but the bit marks are pretty obvious. What is the worm on in the pic? It looks damaged. Blast your colonies with a turkey baster and you'll likely see worms fly off.
i do use a turkey baster while i dip, also i used it on the colonies i don't want to remove from the scape. and i have not seen them floating around.
the worm on the picture, is what i found initially after dipping my colony once i discovered the small white marks, from my search it looked pretty much like AEFW.
i guess i will keep diping but i will spread the dip to once a week to avoid stressing more my colonies/frags.

