If, and right now it's just if, you have AEFW at the level needed to cause that damage, you're screwed. They only affect acropora, not anything else. Dipping is to prevent them getting in to the tank in the first place, once in, they're in. You would need to remove them all to a separate system, dip repeatedly over a long time.
But for now, cut a branch and dip it in whatever dip you like. If worms come off, you'll see them. Translucent oval little suckers. Check that, then see where to go from there.
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Brad
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