Loosing large SPS colonies

[Animal-Chin]

I'd check for flatworms. I recently bought some acro that had flatworms and it infected my tank. My acro's starting dying one by one and I couldn't figure it out until I took one out and dipped it and hundreds fell off. They are invisable when in your tank so you'd never know unless you dip.

[Werbo]

These colonies can no longer be removed from the tank. None of my acro's can be

It could be AEFW. Interesting cause 2 months ago my melanarius wrasse passed away and then a month later I start loosing colonies. Thinking maybe the wrasse was keeping the AEFW in check. Maybe?

But then AEFW usually kill from the base up. My acro's are dying from the tip and receding to the base in all 3 affected colonies.

[Aquattro]

When I had them, the colonies would just start loosing color, then tissue. Cut a branch and dip it, see if anything comes off.

[Werbo]

I've actually never seen a AEFW. What do I look for after dipping? I know they are clear or translucent but how do you'd identify them if they are almost invisible?