so you're saying that each white dot is just bleached tissue, and not bare skeleton?
That tiny piece is your proof? Did you notice the larger bare white areas by any chance?
A theory supported by evidence can be proven true while a pure argument without proof will not hold water.
Does any one of you QT your corals before putting them into your display tank? thats even you've coral rx them?
They don't have to start at the base but that is where you see the eggs. They can start biting any part of the acro to start with.